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Finding the Fourth Proportional to 636,715.36, 878,604.24 and 364,731.04

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Solution

The fourth proportional to 636,715.36, 878,604.24 and 364,731.04 is: 503,292.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    636,715.36 : 878,604.24 = 364,731.04 : x
  2. Step 2: Convert to fraction form
    636,715.36/878,604.24 = 364,731.04/x
  3. Step 3: Cross multiply
    636,715.36x = 878,604.24 × 364,731.04
  4. Step 4: Simplify right side
    636,715.36x = 320,454,238,203.61
  5. Step 5: Solve for x
    x = 320,454,238,203.61/636,715.36
  6. Step 6: Final answer
    x = 503,292.77

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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.