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Finding the Fourth Proportional to 318,042.86, 438,901.89 and 174,806.24

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Solution

The fourth proportional to 318,042.86, 438,901.89 and 174,806.24 is: 241,234.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,042.86 : 438,901.89 = 174,806.24 : x
  2. Step 2: Convert to fraction form
    318,042.86/438,901.89 = 174,806.24/x
  3. Step 3: Cross multiply
    318,042.86x = 438,901.89 × 174,806.24
  4. Step 4: Simplify right side
    318,042.86x = 76,722,789,119.79
  5. Step 5: Solve for x
    x = 76,722,789,119.79/318,042.86
  6. Step 6: Final answer
    x = 241,234.12

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1.5x scale

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.