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Finding the Fourth Proportional to 360,297.32, 540,454.17 and 123,642.05

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Solution

The fourth proportional to 360,297.32, 540,454.17 and 123,642.05 is: 185,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,297.32 : 540,454.17 = 123,642.05 : x
  2. Step 2: Convert to fraction form
    360,297.32/540,454.17 = 123,642.05/x
  3. Step 3: Cross multiply
    360,297.32x = 540,454.17 × 123,642.05
  4. Step 4: Simplify right side
    360,297.32x = 66,822,859,271.24
  5. Step 5: Solve for x
    x = 66,822,859,271.24/360,297.32
  6. Step 6: Final answer
    x = 185,465.88

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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.