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Finding the Fourth Proportional to 274,452.30, 411,678.45 and 230,165.55

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Solution

The fourth proportional to 274,452.30, 411,678.45 and 230,165.55 is: 345,248.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,452.30 : 411,678.45 = 230,165.55 : x
  2. Step 2: Convert to fraction form
    274,452.30/411,678.45 = 230,165.55/x
  3. Step 3: Cross multiply
    274,452.30x = 411,678.45 × 230,165.55
  4. Step 4: Simplify right side
    274,452.30x = 94,754,196,867.40
  5. Step 5: Solve for x
    x = 94,754,196,867.40/274,452.30
  6. Step 6: Final answer
    x = 345,248.33

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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.