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Finding the Fourth Proportional to 424,209.30, 585,402.53 and 230,610.58

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Solution

The fourth proportional to 424,209.30, 585,402.53 and 230,610.58 is: 318,239.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,209.30 : 585,402.53 = 230,610.58 : x
  2. Step 2: Convert to fraction form
    424,209.30/585,402.53 = 230,610.58/x
  3. Step 3: Cross multiply
    424,209.30x = 585,402.53 × 230,610.58
  4. Step 4: Simplify right side
    424,209.30x = 135,000,016,976.77
  5. Step 5: Solve for x
    x = 135,000,016,976.77/424,209.30
  6. Step 6: Final answer
    x = 318,239.17

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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.