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Finding the Fourth Proportional to 374,426.40, 516,715.92 and 204,667.68

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Solution

The fourth proportional to 374,426.40, 516,715.92 and 204,667.68 is: 282,445.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,426.40 : 516,715.92 = 204,667.68 : x
  2. Step 2: Convert to fraction form
    374,426.40/516,715.92 = 204,667.68/x
  3. Step 3: Cross multiply
    374,426.40x = 516,715.92 × 204,667.68
  4. Step 4: Simplify right side
    374,426.40x = 105,755,048,565.47
  5. Step 5: Solve for x
    x = 105,755,048,565.47/374,426.40
  6. Step 6: Final answer
    x = 282,445.49

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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.