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Finding the Fourth Proportional to 700,672.10, 966,927.50 and 378,382.17

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Solution

The fourth proportional to 700,672.10, 966,927.50 and 378,382.17 is: 522,167.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,672.10 : 966,927.50 = 378,382.17 : x
  2. Step 2: Convert to fraction form
    700,672.10/966,927.50 = 378,382.17/x
  3. Step 3: Cross multiply
    700,672.10x = 966,927.50 × 378,382.17
  4. Step 4: Simplify right side
    700,672.10x = 365,868,123,790.76
  5. Step 5: Solve for x
    x = 365,868,123,790.76/700,672.10
  6. Step 6: Final answer
    x = 522,167.39

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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.