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Finding the Fourth Proportional to 576,320.70, 862,925.85 and 576,320.70

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Solution

The fourth proportional to 576,320.70, 862,925.85 and 576,320.70 is: 862,925.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,320.70 : 862,925.85 = 576,320.70 : x
  2. Step 2: Convert to fraction form
    576,320.70/862,925.85 = 576,320.70/x
  3. Step 3: Cross multiply
    576,320.70x = 862,925.85 × 576,320.70
  4. Step 4: Simplify right side
    576,320.70x = 497,322,029,920.10
  5. Step 5: Solve for x
    x = 497,322,029,920.10/576,320.70
  6. Step 6: Final answer
    x = 862,925.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.