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Finding the Fourth Proportional to 484,346.40, 726,546.93 and 147,398.04

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Solution

The fourth proportional to 484,346.40, 726,546.93 and 147,398.04 is: 221,105.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,346.40 : 726,546.93 = 147,398.04 : x
  2. Step 2: Convert to fraction form
    484,346.40/726,546.93 = 147,398.04/x
  3. Step 3: Cross multiply
    484,346.40x = 726,546.93 × 147,398.04
  4. Step 4: Simplify right side
    484,346.40x = 107,091,593,450.02
  5. Step 5: Solve for x
    x = 107,091,593,450.02/484,346.40
  6. Step 6: Final answer
    x = 221,105.38

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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.