Home / 462,414.24-693,621.36-129,990.24

Finding the Fourth Proportional to 462,414.24, 693,621.36 and 129,990.24

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Solution

The fourth proportional to 462,414.24, 693,621.36 and 129,990.24 is: 194,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,414.24 : 693,621.36 = 129,990.24 : x
  2. Step 2: Convert to fraction form
    462,414.24/693,621.36 = 129,990.24/x
  3. Step 3: Cross multiply
    462,414.24x = 693,621.36 × 129,990.24
  4. Step 4: Simplify right side
    462,414.24x = 90,164,007,055.53
  5. Step 5: Solve for x
    x = 90,164,007,055.53/462,414.24
  6. Step 6: Final answer
    x = 194,985.36

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Double scale
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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.