Home / 330,493.20-456,079.38-187,280.64

Finding the Fourth Proportional to 330,493.20, 456,079.38 and 187,280.64

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Solution

The fourth proportional to 330,493.20, 456,079.38 and 187,280.64 is: 258,446.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,493.20 : 456,079.38 = 187,280.64 : x
  2. Step 2: Convert to fraction form
    330,493.20/456,079.38 = 187,280.64/x
  3. Step 3: Cross multiply
    330,493.20x = 456,079.38 × 187,280.64
  4. Step 4: Simplify right side
    330,493.20x = 85,414,838,177.20
  5. Step 5: Solve for x
    x = 85,414,838,177.20/330,493.20
  6. Step 6: Final answer
    x = 258,446.58

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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.