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Finding the Fourth Proportional to 475,724.79, 712,187.51 and 317,560.95

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Solution

The fourth proportional to 475,724.79, 712,187.51 and 317,560.95 is: 475,407.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,724.79 : 712,187.51 = 317,560.95 : x
  2. Step 2: Convert to fraction form
    475,724.79/712,187.51 = 317,560.95/x
  3. Step 3: Cross multiply
    475,724.79x = 712,187.51 × 317,560.95
  4. Step 4: Simplify right side
    475,724.79x = 226,162,940,665.93
  5. Step 5: Solve for x
    x = 226,162,940,665.93/475,724.79
  6. Step 6: Final answer
    x = 475,407.10

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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.