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Finding the Fourth Proportional to 542,890.17, 814,750.92 and 391,014.27

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Solution

The fourth proportional to 542,890.17, 814,750.92 and 391,014.27 is: 586,820.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    542,890.17 : 814,750.92 = 391,014.27 : x
  2. Step 2: Convert to fraction form
    542,890.17/814,750.92 = 391,014.27/x
  3. Step 3: Cross multiply
    542,890.17x = 814,750.92 × 391,014.27
  4. Step 4: Simplify right side
    542,890.17x = 318,579,236,215.63
  5. Step 5: Solve for x
    x = 318,579,236,215.63/542,890.17
  6. Step 6: Final answer
    x = 586,820.79

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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.