Home / 361,531.20-498,914.10-200,388.90

Finding the Fourth Proportional to 361,531.20, 498,914.10 and 200,388.90

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Solution

The fourth proportional to 361,531.20, 498,914.10 and 200,388.90 is: 276,537.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,531.20 : 498,914.10 = 200,388.90 : x
  2. Step 2: Convert to fraction form
    361,531.20/498,914.10 = 200,388.90/x
  3. Step 3: Cross multiply
    361,531.20x = 498,914.10 × 200,388.90
  4. Step 4: Simplify right side
    361,531.20x = 99,976,847,693.49
  5. Step 5: Solve for x
    x = 99,976,847,693.49/361,531.20
  6. Step 6: Final answer
    x = 276,537.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.