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Finding the Fourth Proportional to 431,990.40, 596,135.25 and 240,998.88

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Solution

The fourth proportional to 431,990.40, 596,135.25 and 240,998.88 is: 332,572.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,990.40 : 596,135.25 = 240,998.88 : x
  2. Step 2: Convert to fraction form
    431,990.40/596,135.25 = 240,998.88/x
  3. Step 3: Cross multiply
    431,990.40x = 596,135.25 × 240,998.88
  4. Step 4: Simplify right side
    431,990.40x = 143,667,927,578.52
  5. Step 5: Solve for x
    x = 143,667,927,578.52/431,990.40
  6. Step 6: Final answer
    x = 332,572.04

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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.