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Finding the Fourth Proportional to 355,987.80, 534,350.85 and 238,480.29

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Solution

The fourth proportional to 355,987.80, 534,350.85 and 238,480.29 is: 357,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,987.80 : 534,350.85 = 238,480.29 : x
  2. Step 2: Convert to fraction form
    355,987.80/534,350.85 = 238,480.29/x
  3. Step 3: Cross multiply
    355,987.80x = 534,350.85 × 238,480.29
  4. Step 4: Simplify right side
    355,987.80x = 127,432,145,669.75
  5. Step 5: Solve for x
    x = 127,432,145,669.75/355,987.80
  6. Step 6: Final answer
    x = 357,967.73

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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.