Home / 449,254.20-619,972.12-245,306.90

Finding the Fourth Proportional to 449,254.20, 619,972.12 and 245,306.90

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Solution

The fourth proportional to 449,254.20, 619,972.12 and 245,306.90 is: 338,524.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,254.20 : 619,972.12 = 245,306.90 : x
  2. Step 2: Convert to fraction form
    449,254.20/619,972.12 = 245,306.90/x
  3. Step 3: Cross multiply
    449,254.20x = 619,972.12 × 245,306.90
  4. Step 4: Simplify right side
    449,254.20x = 152,083,438,843.63
  5. Step 5: Solve for x
    x = 152,083,438,843.63/449,254.20
  6. Step 6: Final answer
    x = 338,524.24

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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.