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Finding the Fourth Proportional to 659,639.92, 910,304.84 and 357,833.92

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Solution

The fourth proportional to 659,639.92, 910,304.84 and 357,833.92 is: 493,811.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,639.92 : 910,304.84 = 357,833.92 : x
  2. Step 2: Convert to fraction form
    659,639.92/910,304.84 = 357,833.92/x
  3. Step 3: Cross multiply
    659,639.92x = 910,304.84 × 357,833.92
  4. Step 4: Simplify right side
    659,639.92x = 325,737,949,292.17
  5. Step 5: Solve for x
    x = 325,737,949,292.17/659,639.92
  6. Step 6: Final answer
    x = 493,811.76

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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.