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Finding the Fourth Proportional to 484,508.22, 726,762.54 and 217,957.38

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Solution

The fourth proportional to 484,508.22, 726,762.54 and 217,957.38 is: 326,936.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,508.22 : 726,762.54 = 217,957.38 : x
  2. Step 2: Convert to fraction form
    484,508.22/726,762.54 = 217,957.38/x
  3. Step 3: Cross multiply
    484,508.22x = 726,762.54 × 217,957.38
  4. Step 4: Simplify right side
    484,508.22x = 158,403,259,100.55
  5. Step 5: Solve for x
    x = 158,403,259,100.55/484,508.22
  6. Step 6: Final answer
    x = 326,936.16

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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.