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Finding the Fourth Proportional to 360,279.60, 540,449.40 and 107,543.40

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Solution

The fourth proportional to 360,279.60, 540,449.40 and 107,543.40 is: 161,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,279.60 : 540,449.40 = 107,543.40 : x
  2. Step 2: Convert to fraction form
    360,279.60/540,449.40 = 107,543.40/x
  3. Step 3: Cross multiply
    360,279.60x = 540,449.40 × 107,543.40
  4. Step 4: Simplify right side
    360,279.60x = 58,121,766,003.96
  5. Step 5: Solve for x
    x = 58,121,766,003.96/360,279.60
  6. Step 6: Final answer
    x = 161,324.05

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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.