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Finding the Fourth Proportional to 543,241.72, 814,589.20 and 188,160.40

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Solution

The fourth proportional to 543,241.72, 814,589.20 and 188,160.40 is: 282,145.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,241.72 : 814,589.20 = 188,160.40 : x
  2. Step 2: Convert to fraction form
    543,241.72/814,589.20 = 188,160.40/x
  3. Step 3: Cross multiply
    543,241.72x = 814,589.20 × 188,160.40
  4. Step 4: Simplify right side
    543,241.72x = 153,273,429,707.68
  5. Step 5: Solve for x
    x = 153,273,429,707.68/543,241.72
  6. Step 6: Final answer
    x = 282,145.91

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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.