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Finding the Fourth Proportional to 475,719.80, 656,493 and 260,863.52

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Solution

The fourth proportional to 475,719.80, 656,493 and 260,863.52 is: 359,991.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    475,719.80 : 656,493 = 260,863.52 : x
  2. Step 2: Convert to fraction form
    475,719.80/656,493 = 260,863.52/x
  3. Step 3: Cross multiply
    475,719.80x = 656,493 × 260,863.52
  4. Step 4: Simplify right side
    475,719.80x = 171,255,074,835.36
  5. Step 5: Solve for x
    x = 171,255,074,835.36/475,719.80
  6. Step 6: Final answer
    x = 359,991.48

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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.