Home / 572,971.11-859,161.02-257,157.78

Finding the Fourth Proportional to 572,971.11, 859,161.02 and 257,157.78

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Solution

The fourth proportional to 572,971.11, 859,161.02 and 257,157.78 is: 385,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,971.11 : 859,161.02 = 257,157.78 : x
  2. Step 2: Convert to fraction form
    572,971.11/859,161.02 = 257,157.78/x
  3. Step 3: Cross multiply
    572,971.11x = 859,161.02 × 257,157.78
  4. Step 4: Simplify right side
    572,971.11x = 220,939,939,279.95
  5. Step 5: Solve for x
    x = 220,939,939,279.95/572,971.11
  6. Step 6: Final answer
    x = 385,603.98

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.