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Finding the Fourth Proportional to 482,398.56, 723,632.40 and 127,409.04

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Solution

The fourth proportional to 482,398.56, 723,632.40 and 127,409.04 is: 191,122.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,398.56 : 723,632.40 = 127,409.04 : x
  2. Step 2: Convert to fraction form
    482,398.56/723,632.40 = 127,409.04/x
  3. Step 3: Cross multiply
    482,398.56x = 723,632.40 × 127,409.04
  4. Step 4: Simplify right side
    482,398.56x = 92,197,309,396.90
  5. Step 5: Solve for x
    x = 92,197,309,396.90/482,398.56
  6. Step 6: Final answer
    x = 191,122.69

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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.