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Finding the Fourth Proportional to 621,702.40, 932,553.60 and 569,862.40

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Solution

The fourth proportional to 621,702.40, 932,553.60 and 569,862.40 is: 854,793.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,702.40 : 932,553.60 = 569,862.40 : x
  2. Step 2: Convert to fraction form
    621,702.40/932,553.60 = 569,862.40/x
  3. Step 3: Cross multiply
    621,702.40x = 932,553.60 × 569,862.40
  4. Step 4: Simplify right side
    621,702.40x = 531,427,232,624.64
  5. Step 5: Solve for x
    x = 531,427,232,624.64/621,702.40
  6. Step 6: Final answer
    x = 854,793.60

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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.