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Finding the Fourth Proportional to 394,937.88, 592,418.10 and 155,041.80

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Solution

The fourth proportional to 394,937.88, 592,418.10 and 155,041.80 is: 232,567.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,937.88 : 592,418.10 = 155,041.80 : x
  2. Step 2: Convert to fraction form
    394,937.88/592,418.10 = 155,041.80/x
  3. Step 3: Cross multiply
    394,937.88x = 592,418.10 × 155,041.80
  4. Step 4: Simplify right side
    394,937.88x = 91,849,568,576.58
  5. Step 5: Solve for x
    x = 91,849,568,576.58/394,937.88
  6. Step 6: Final answer
    x = 232,567.13

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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.