Home / 819,706.20-1,229,559.30-465,412.20

Finding the Fourth Proportional to 819,706.20, 1,229,559.30 and 465,412.20

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Solution

The fourth proportional to 819,706.20, 1,229,559.30 and 465,412.20 is: 698,118.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,706.20 : 1,229,559.30 = 465,412.20 : x
  2. Step 2: Convert to fraction form
    819,706.20/1,229,559.30 = 465,412.20/x
  3. Step 3: Cross multiply
    819,706.20x = 1,229,559.30 × 465,412.20
  4. Step 4: Simplify right side
    819,706.20x = 572,251,898,843.46
  5. Step 5: Solve for x
    x = 572,251,898,843.46/819,706.20
  6. Step 6: Final answer
    x = 698,118.30

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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.