Home / 551,981.70-827,972.55-383,145.30

Finding the Fourth Proportional to 551,981.70, 827,972.55 and 383,145.30

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Solution

The fourth proportional to 551,981.70, 827,972.55 and 383,145.30 is: 574,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,981.70 : 827,972.55 = 383,145.30 : x
  2. Step 2: Convert to fraction form
    551,981.70/827,972.55 = 383,145.30/x
  3. Step 3: Cross multiply
    551,981.70x = 827,972.55 × 383,145.30
  4. Step 4: Simplify right side
    551,981.70x = 317,233,791,061.52
  5. Step 5: Solve for x
    x = 317,233,791,061.52/551,981.70
  6. Step 6: Final answer
    x = 574,717.95

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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.