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Finding the Fourth Proportional to 475,781.75, 656,518.47 and 260,865.26

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Solution

The fourth proportional to 475,781.75, 656,518.47 and 260,865.26 is: 359,960.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,781.75 : 656,518.47 = 260,865.26 : x
  2. Step 2: Convert to fraction form
    475,781.75/656,518.47 = 260,865.26/x
  3. Step 3: Cross multiply
    475,781.75x = 656,518.47 × 260,865.26
  4. Step 4: Simplify right side
    475,781.75x = 171,262,861,371.35
  5. Step 5: Solve for x
    x = 171,262,861,371.35/475,781.75
  6. Step 6: Final answer
    x = 359,960.97

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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.