Home / 461,356.20-692,034.30-128,932.20

Finding the Fourth Proportional to 461,356.20, 692,034.30 and 128,932.20

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Solution

The fourth proportional to 461,356.20, 692,034.30 and 128,932.20 is: 193,398.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,356.20 : 692,034.30 = 128,932.20 : x
  2. Step 2: Convert to fraction form
    461,356.20/692,034.30 = 128,932.20/x
  3. Step 3: Cross multiply
    461,356.20x = 692,034.30 × 128,932.20
  4. Step 4: Simplify right side
    461,356.20x = 89,225,504,774.46
  5. Step 5: Solve for x
    x = 89,225,504,774.46/461,356.20
  6. Step 6: Final answer
    x = 193,398.30

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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.