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Finding the Fourth Proportional to 274,616.40, 411,233.40 and 180,613.20

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Solution

The fourth proportional to 274,616.40, 411,233.40 and 180,613.20 is: 270,465.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,616.40 : 411,233.40 = 180,613.20 : x
  2. Step 2: Convert to fraction form
    274,616.40/411,233.40 = 180,613.20/x
  3. Step 3: Cross multiply
    274,616.40x = 411,233.40 × 180,613.20
  4. Step 4: Simplify right side
    274,616.40x = 74,274,180,320.88
  5. Step 5: Solve for x
    x = 74,274,180,320.88/274,616.40
  6. Step 6: Final answer
    x = 270,465.20

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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.