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Finding the Fourth Proportional to 493,425.20, 680,926.56 and 292,221.20

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Solution

The fourth proportional to 493,425.20, 680,926.56 and 292,221.20 is: 403,265.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,425.20 : 680,926.56 = 292,221.20 : x
  2. Step 2: Convert to fraction form
    493,425.20/680,926.56 = 292,221.20/x
  3. Step 3: Cross multiply
    493,425.20x = 680,926.56 × 292,221.20
  4. Step 4: Simplify right side
    493,425.20x = 198,981,176,475.07
  5. Step 5: Solve for x
    x = 198,981,176,475.07/493,425.20
  6. Step 6: Final answer
    x = 403,265.13

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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.