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Finding the Fourth Proportional to 662,565.72, 992,594.70 and 391,883.16

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Solution

The fourth proportional to 662,565.72, 992,594.70 and 391,883.16 is: 587,083.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,565.72 : 992,594.70 = 391,883.16 : x
  2. Step 2: Convert to fraction form
    662,565.72/992,594.70 = 391,883.16/x
  3. Step 3: Cross multiply
    662,565.72x = 992,594.70 × 391,883.16
  4. Step 4: Simplify right side
    662,565.72x = 388,981,147,635.25
  5. Step 5: Solve for x
    x = 388,981,147,635.25/662,565.72
  6. Step 6: Final answer
    x = 587,083.12

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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.