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Finding the Fourth Proportional to 239,686.89, 359,508.46 and 220,893.27

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Solution

The fourth proportional to 239,686.89, 359,508.46 and 220,893.27 is: 331,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,686.89 : 359,508.46 = 220,893.27 : x
  2. Step 2: Convert to fraction form
    239,686.89/359,508.46 = 220,893.27/x
  3. Step 3: Cross multiply
    239,686.89x = 359,508.46 × 220,893.27
  4. Step 4: Simplify right side
    239,686.89x = 79,412,999,322.06
  5. Step 5: Solve for x
    x = 79,412,999,322.06/239,686.89
  6. Step 6: Final answer
    x = 331,319.75

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1.5x scale

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.