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Finding the Fourth Proportional to 584,199.40, 876,687.90 and 331,479.40

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Solution

The fourth proportional to 584,199.40, 876,687.90 and 331,479.40 is: 497,439.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    584,199.40 : 876,687.90 = 331,479.40 : x
  2. Step 2: Convert to fraction form
    584,199.40/876,687.90 = 331,479.40/x
  3. Step 3: Cross multiply
    584,199.40x = 876,687.90 × 331,479.40
  4. Step 4: Simplify right side
    584,199.40x = 290,603,979,079.26
  5. Step 5: Solve for x
    x = 290,603,979,079.26/584,199.40
  6. Step 6: Final answer
    x = 497,439.71

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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.