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Finding the Fourth Proportional to 484,338.64, 726,535.29 and 147,390.28

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Solution

The fourth proportional to 484,338.64, 726,535.29 and 147,390.28 is: 221,093.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,338.64 : 726,535.29 = 147,390.28 : x
  2. Step 2: Convert to fraction form
    484,338.64/726,535.29 = 147,390.28/x
  3. Step 3: Cross multiply
    484,338.64x = 726,535.29 × 147,390.28
  4. Step 4: Simplify right side
    484,338.64x = 107,084,239,822.98
  5. Step 5: Solve for x
    x = 107,084,239,822.98/484,338.64
  6. Step 6: Final answer
    x = 221,093.74

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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.