Home / 1,257,343,315.90-1,735,170,788.04-692,864,559.20

Finding the Fourth Proportional to 1,257,343,315.90, 1,735,170,788.04 and 692,864,559.20

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Solution

The fourth proportional to 1,257,343,315.90, 1,735,170,788.04 and 692,864,559.20 is: 956,173,487.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,257,343,315.90 : 1,735,170,788.04 = 692,864,559.20 : x
  2. Step 2: Convert to fraction form
    1,257,343,315.90/1,735,170,788.04 = 692,864,559.20/x
  3. Step 3: Cross multiply
    1,257,343,315.90x = 1,735,170,788.04 × 692,864,559.20
  4. Step 4: Simplify right side
    1,257,343,315.90x = 1,202,238,343,192,515,328
  5. Step 5: Solve for x
    x = 1,202,238,343,192,515,328/1,257,343,315.90
  6. Step 6: Final answer
    x = 956,173,487.38

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.