Home / 461,256.30-691,884.45-128,832.30

Finding the Fourth Proportional to 461,256.30, 691,884.45 and 128,832.30

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Solution

The fourth proportional to 461,256.30, 691,884.45 and 128,832.30 is: 193,248.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,256.30 : 691,884.45 = 128,832.30 : x
  2. Step 2: Convert to fraction form
    461,256.30/691,884.45 = 128,832.30/x
  3. Step 3: Cross multiply
    461,256.30x = 691,884.45 × 128,832.30
  4. Step 4: Simplify right side
    461,256.30x = 89,137,065,027.74
  5. Step 5: Solve for x
    x = 89,137,065,027.74/461,256.30
  6. Step 6: Final answer
    x = 193,248.45

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.