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Finding the Fourth Proportional to 475,856.10, 656,337.32 and 404,122.50

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Solution

The fourth proportional to 475,856.10, 656,337.32 and 404,122.50 is: 557,396.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,856.10 : 656,337.32 = 404,122.50 : x
  2. Step 2: Convert to fraction form
    475,856.10/656,337.32 = 404,122.50/x
  3. Step 3: Cross multiply
    475,856.10x = 656,337.32 × 404,122.50
  4. Step 4: Simplify right side
    475,856.10x = 265,240,678,601.70
  5. Step 5: Solve for x
    x = 265,240,678,601.70/475,856.10
  6. Step 6: Final answer
    x = 557,396.82

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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.