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Finding the Fourth Proportional to 443,691.08, 612,402.54 and 252,817.28

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Solution

The fourth proportional to 443,691.08, 612,402.54 and 252,817.28 is: 348,949.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,691.08 : 612,402.54 = 252,817.28 : x
  2. Step 2: Convert to fraction form
    443,691.08/612,402.54 = 252,817.28/x
  3. Step 3: Cross multiply
    443,691.08x = 612,402.54 × 252,817.28
  4. Step 4: Simplify right side
    443,691.08x = 154,825,944,427.89
  5. Step 5: Solve for x
    x = 154,825,944,427.89/443,691.08
  6. Step 6: Final answer
    x = 348,949.87

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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.