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Finding the Fourth Proportional to 681,502.67, 940,480.11 and 375,590.24

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Solution

The fourth proportional to 681,502.67, 940,480.11 and 375,590.24 is: 518,318.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,502.67 : 940,480.11 = 375,590.24 : x
  2. Step 2: Convert to fraction form
    681,502.67/940,480.11 = 375,590.24/x
  3. Step 3: Cross multiply
    681,502.67x = 940,480.11 × 375,590.24
  4. Step 4: Simplify right side
    681,502.67x = 353,235,145,527.73
  5. Step 5: Solve for x
    x = 353,235,145,527.73/681,502.67
  6. Step 6: Final answer
    x = 518,318.07

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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.