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Finding the Fourth Proportional to 484,278.80, 726,458.75 and 147,322.02

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Solution

The fourth proportional to 484,278.80, 726,458.75 and 147,322.02 is: 220,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,278.80 : 726,458.75 = 147,322.02 : x
  2. Step 2: Convert to fraction form
    484,278.80/726,458.75 = 147,322.02/x
  3. Step 3: Cross multiply
    484,278.80x = 726,458.75 × 147,322.02
  4. Step 4: Simplify right side
    484,278.80x = 107,023,367,321.59
  5. Step 5: Solve for x
    x = 107,023,367,321.59/484,278.80
  6. Step 6: Final answer
    x = 220,995.36

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.