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Finding the Fourth Proportional to 436,958.80, 655,432.58 and 238,543.24

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Solution

The fourth proportional to 436,958.80, 655,432.58 and 238,543.24 is: 357,811.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,958.80 : 655,432.58 = 238,543.24 : x
  2. Step 2: Convert to fraction form
    436,958.80/655,432.58 = 238,543.24/x
  3. Step 3: Cross multiply
    436,958.80x = 655,432.58 × 238,543.24
  4. Step 4: Simplify right side
    436,958.80x = 156,349,011,234.76
  5. Step 5: Solve for x
    x = 156,349,011,234.76/436,958.80
  6. Step 6: Final answer
    x = 357,811.79

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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.