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Finding the Fourth Proportional to 431,060.80, 646,882.80 and 241,520.80

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Solution

The fourth proportional to 431,060.80, 646,882.80 and 241,520.80 is: 362,444.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,060.80 : 646,882.80 = 241,520.80 : x
  2. Step 2: Convert to fraction form
    431,060.80/646,882.80 = 241,520.80/x
  3. Step 3: Cross multiply
    431,060.80x = 646,882.80 × 241,520.80
  4. Step 4: Simplify right side
    431,060.80x = 156,235,651,362.24
  5. Step 5: Solve for x
    x = 156,235,651,362.24/431,060.80
  6. Step 6: Final answer
    x = 362,444.58

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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.