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Finding the Fourth Proportional to 541,375.47, 812,059.56 and 423,146.25

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Solution

The fourth proportional to 541,375.47, 812,059.56 and 423,146.25 is: 634,716.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,375.47 : 812,059.56 = 423,146.25 : x
  2. Step 2: Convert to fraction form
    541,375.47/812,059.56 = 423,146.25/x
  3. Step 3: Cross multiply
    541,375.47x = 812,059.56 × 423,146.25
  4. Step 4: Simplify right side
    541,375.47x = 343,619,957,590.65
  5. Step 5: Solve for x
    x = 343,619,957,590.65/541,375.47
  6. Step 6: Final answer
    x = 634,716.53

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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.