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Finding the Fourth Proportional to 532,387.60, 798,581.40 and 497,136.40

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Solution

The fourth proportional to 532,387.60, 798,581.40 and 497,136.40 is: 745,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    532,387.60 : 798,581.40 = 497,136.40 : x
  2. Step 2: Convert to fraction form
    532,387.60/798,581.40 = 497,136.40/x
  3. Step 3: Cross multiply
    532,387.60x = 798,581.40 × 497,136.40
  4. Step 4: Simplify right side
    532,387.60x = 397,003,882,302.96
  5. Step 5: Solve for x
    x = 397,003,882,302.96/532,387.60
  6. Step 6: Final answer
    x = 745,704.60

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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.