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Finding the Fourth Proportional to 664,124.64, 916,488.92 and 362,318.64

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Solution

The fourth proportional to 664,124.64, 916,488.92 and 362,318.64 is: 499,998.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,124.64 : 916,488.92 = 362,318.64 : x
  2. Step 2: Convert to fraction form
    664,124.64/916,488.92 = 362,318.64/x
  3. Step 3: Cross multiply
    664,124.64x = 916,488.92 × 362,318.64
  4. Step 4: Simplify right side
    664,124.64x = 332,061,019,069.47
  5. Step 5: Solve for x
    x = 332,061,019,069.47/664,124.64
  6. Step 6: Final answer
    x = 499,998.04

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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.