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Finding the Fourth Proportional to 534,121.20, 801,311.40 and 376,657.20

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Solution

The fourth proportional to 534,121.20, 801,311.40 and 376,657.20 is: 565,077.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,121.20 : 801,311.40 = 376,657.20 : x
  2. Step 2: Convert to fraction form
    534,121.20/801,311.40 = 376,657.20/x
  3. Step 3: Cross multiply
    534,121.20x = 801,311.40 × 376,657.20
  4. Step 4: Simplify right side
    534,121.20x = 301,819,708,252.08
  5. Step 5: Solve for x
    x = 301,819,708,252.08/534,121.20
  6. Step 6: Final answer
    x = 565,077.19

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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.