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Finding the Fourth Proportional to 360,226.32, 540,278.19 and 120,313.02

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Solution

The fourth proportional to 360,226.32, 540,278.19 and 120,313.02 is: 180,449.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,226.32 : 540,278.19 = 120,313.02 : x
  2. Step 2: Convert to fraction form
    360,226.32/540,278.19 = 120,313.02/x
  3. Step 3: Cross multiply
    360,226.32x = 540,278.19 × 120,313.02
  4. Step 4: Simplify right side
    360,226.32x = 65,002,500,679.03
  5. Step 5: Solve for x
    x = 65,002,500,679.03/360,226.32
  6. Step 6: Final answer
    x = 180,449.06

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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.