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Finding the Fourth Proportional to 475,656.57, 656,426.57 and 284,633.19

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Solution

The fourth proportional to 475,656.57, 656,426.57 and 284,633.19 is: 392,806.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,656.57 : 656,426.57 = 284,633.19 : x
  2. Step 2: Convert to fraction form
    475,656.57/656,426.57 = 284,633.19/x
  3. Step 3: Cross multiply
    475,656.57x = 656,426.57 × 284,633.19
  4. Step 4: Simplify right side
    475,656.57x = 186,840,787,196.69
  5. Step 5: Solve for x
    x = 186,840,787,196.69/475,656.57
  6. Step 6: Final answer
    x = 392,806.07

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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.