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Finding the Fourth Proportional to 847,812.44, 1,169,691.72 and 525,404.90

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Solution

The fourth proportional to 847,812.44, 1,169,691.72 and 525,404.90 is: 724,879.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,812.44 : 1,169,691.72 = 525,404.90 : x
  2. Step 2: Convert to fraction form
    847,812.44/1,169,691.72 = 525,404.90/x
  3. Step 3: Cross multiply
    847,812.44x = 1,169,691.72 × 525,404.90
  4. Step 4: Simplify right side
    847,812.44x = 614,561,761,177.43
  5. Step 5: Solve for x
    x = 614,561,761,177.43/847,812.44
  6. Step 6: Final answer
    x = 724,879.39

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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.