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Finding the Fourth Proportional to 612,862.60, 845,052.98 and 431,516.52

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Solution

The fourth proportional to 612,862.60, 845,052.98 and 431,516.52 is: 595,001.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,862.60 : 845,052.98 = 431,516.52 : x
  2. Step 2: Convert to fraction form
    612,862.60/845,052.98 = 431,516.52/x
  3. Step 3: Cross multiply
    612,862.60x = 845,052.98 × 431,516.52
  4. Step 4: Simplify right side
    612,862.60x = 364,654,321,145.23
  5. Step 5: Solve for x
    x = 364,654,321,145.23/612,862.60
  6. Step 6: Final answer
    x = 595,001.75

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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.