Home / 330,761.98-456,437.76-187,531.72

Finding the Fourth Proportional to 330,761.98, 456,437.76 and 187,531.72

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Solution

The fourth proportional to 330,761.98, 456,437.76 and 187,531.72 is: 258,785.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,761.98 : 456,437.76 = 187,531.72 : x
  2. Step 2: Convert to fraction form
    330,761.98/456,437.76 = 187,531.72/x
  3. Step 3: Cross multiply
    330,761.98x = 456,437.76 × 187,531.72
  4. Step 4: Simplify right side
    330,761.98x = 85,596,558,205.75
  5. Step 5: Solve for x
    x = 85,596,558,205.75/330,761.98
  6. Step 6: Final answer
    x = 258,785.97

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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.