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Finding the Fourth Proportional to 774,471.38, 1,068,471 and 571,005.05

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Solution

The fourth proportional to 774,471.38, 1,068,471 and 571,005.05 is: 787,766.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    774,471.38 : 1,068,471 = 571,005.05 : x
  2. Step 2: Convert to fraction form
    774,471.38/1,068,471 = 571,005.05/x
  3. Step 3: Cross multiply
    774,471.38x = 1,068,471 × 571,005.05
  4. Step 4: Simplify right side
    774,471.38x = 610,102,331,436.20
  5. Step 5: Solve for x
    x = 610,102,331,436.20/774,471.38
  6. Step 6: Final answer
    x = 787,766.15

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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.