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Finding the Fourth Proportional to 484,424.40, 726,792.18 and 147,530.22

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Solution

The fourth proportional to 484,424.40, 726,792.18 and 147,530.22 is: 221,342.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,424.40 : 726,792.18 = 147,530.22 : x
  2. Step 2: Convert to fraction form
    484,424.40/726,792.18 = 147,530.22/x
  3. Step 3: Cross multiply
    484,424.40x = 726,792.18 × 147,530.22
  4. Step 4: Simplify right side
    484,424.40x = 107,223,810,209.68
  5. Step 5: Solve for x
    x = 107,223,810,209.68/484,424.40
  6. Step 6: Final answer
    x = 221,342.71

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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.