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Finding the Fourth Proportional to 391,050.56, 539,356.00 and 262,134.43

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Solution

The fourth proportional to 391,050.56, 539,356.00 and 262,134.43 is: 361,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,050.56 : 539,356.00 = 262,134.43 : x
  2. Step 2: Convert to fraction form
    391,050.56/539,356.00 = 262,134.43/x
  3. Step 3: Cross multiply
    391,050.56x = 539,356.00 × 262,134.43
  4. Step 4: Simplify right side
    391,050.56x = 141,383,777,220.74
  5. Step 5: Solve for x
    x = 141,383,777,220.74/391,050.56
  6. Step 6: Final answer
    x = 361,548.59

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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.