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Finding the Fourth Proportional to 657,706.60, 986,559.90 and 523,862.20

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Solution

The fourth proportional to 657,706.60, 986,559.90 and 523,862.20 is: 785,793.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,706.60 : 986,559.90 = 523,862.20 : x
  2. Step 2: Convert to fraction form
    657,706.60/986,559.90 = 523,862.20/x
  3. Step 3: Cross multiply
    657,706.60x = 986,559.90 × 523,862.20
  4. Step 4: Simplify right side
    657,706.60x = 516,821,439,645.78
  5. Step 5: Solve for x
    x = 516,821,439,645.78/657,706.60
  6. Step 6: Final answer
    x = 785,793.30

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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.