Home / 330,539.44-456,134.96-187,345.76

Finding the Fourth Proportional to 330,539.44, 456,134.96 and 187,345.76

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Solution

The fourth proportional to 330,539.44, 456,134.96 and 187,345.76 is: 258,531.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,539.44 : 456,134.96 = 187,345.76 : x
  2. Step 2: Convert to fraction form
    330,539.44/456,134.96 = 187,345.76/x
  3. Step 3: Cross multiply
    330,539.44x = 456,134.96 × 187,345.76
  4. Step 4: Simplify right side
    330,539.44x = 85,454,950,743.77
  5. Step 5: Solve for x
    x = 85,454,950,743.77/330,539.44
  6. Step 6: Final answer
    x = 258,531.78

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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.