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Finding the Fourth Proportional to 392,398.04, 541,499.10 and 229,085.84

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Solution

The fourth proportional to 392,398.04, 541,499.10 and 229,085.84 is: 316,132.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,398.04 : 541,499.10 = 229,085.84 : x
  2. Step 2: Convert to fraction form
    392,398.04/541,499.10 = 229,085.84/x
  3. Step 3: Cross multiply
    392,398.04x = 541,499.10 × 229,085.84
  4. Step 4: Simplify right side
    392,398.04x = 124,049,776,182.74
  5. Step 5: Solve for x
    x = 124,049,776,182.74/392,398.04
  6. Step 6: Final answer
    x = 316,132.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.