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Finding the Fourth Proportional to 475,478.91, 656,177.22 and 260,618.85

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Solution

The fourth proportional to 475,478.91, 656,177.22 and 260,618.85 is: 359,662.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,478.91 : 656,177.22 = 260,618.85 : x
  2. Step 2: Convert to fraction form
    475,478.91/656,177.22 = 260,618.85/x
  3. Step 3: Cross multiply
    475,478.91x = 656,177.22 × 260,618.85
  4. Step 4: Simplify right side
    475,478.91x = 171,012,152,472.60
  5. Step 5: Solve for x
    x = 171,012,152,472.60/475,478.91
  6. Step 6: Final answer
    x = 359,662.96

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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.