Home / 403,724.20-605,586.30-381,951.40

Finding the Fourth Proportional to 403,724.20, 605,586.30 and 381,951.40

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Solution

The fourth proportional to 403,724.20, 605,586.30 and 381,951.40 is: 572,927.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,724.20 : 605,586.30 = 381,951.40 : x
  2. Step 2: Convert to fraction form
    403,724.20/605,586.30 = 381,951.40/x
  3. Step 3: Cross multiply
    403,724.20x = 605,586.30 × 381,951.40
  4. Step 4: Simplify right side
    403,724.20x = 231,304,535,105.82
  5. Step 5: Solve for x
    x = 231,304,535,105.82/403,724.20
  6. Step 6: Final answer
    x = 572,927.10

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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.