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Finding the Fourth Proportional to 391,950.04, 541,158.18 and 263,081.80

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Solution

The fourth proportional to 391,950.04, 541,158.18 and 263,081.80 is: 363,232.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,950.04 : 541,158.18 = 263,081.80 : x
  2. Step 2: Convert to fraction form
    391,950.04/541,158.18 = 263,081.80/x
  3. Step 3: Cross multiply
    391,950.04x = 541,158.18 × 263,081.80
  4. Step 4: Simplify right side
    391,950.04x = 142,368,868,079.12
  5. Step 5: Solve for x
    x = 142,368,868,079.12/391,950.04
  6. Step 6: Final answer
    x = 363,232.18

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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.