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Finding the Fourth Proportional to 408,285.76, 563,545.20 and 265,037.44

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Solution

The fourth proportional to 408,285.76, 563,545.20 and 265,037.44 is: 365,823.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,285.76 : 563,545.20 = 265,037.44 : x
  2. Step 2: Convert to fraction form
    408,285.76/563,545.20 = 265,037.44/x
  3. Step 3: Cross multiply
    408,285.76x = 563,545.20 × 265,037.44
  4. Step 4: Simplify right side
    408,285.76x = 149,360,577,132.29
  5. Step 5: Solve for x
    x = 149,360,577,132.29/408,285.76
  6. Step 6: Final answer
    x = 365,823.63

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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.