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Finding the Fourth Proportional to 423,452.60, 584,376.29 and 239,676.56

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Solution

The fourth proportional to 423,452.60, 584,376.29 and 239,676.56 is: 330,760.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,452.60 : 584,376.29 = 239,676.56 : x
  2. Step 2: Convert to fraction form
    423,452.60/584,376.29 = 239,676.56/x
  3. Step 3: Cross multiply
    423,452.60x = 584,376.29 × 239,676.56
  4. Step 4: Simplify right side
    423,452.60x = 140,061,298,932.76
  5. Step 5: Solve for x
    x = 140,061,298,932.76/423,452.60
  6. Step 6: Final answer
    x = 330,760.28

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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.