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Finding the Fourth Proportional to 543,310.20, 814,965.30 and 188,360.10

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Solution

The fourth proportional to 543,310.20, 814,965.30 and 188,360.10 is: 282,540.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,310.20 : 814,965.30 = 188,360.10 : x
  2. Step 2: Convert to fraction form
    543,310.20/814,965.30 = 188,360.10/x
  3. Step 3: Cross multiply
    543,310.20x = 814,965.30 × 188,360.10
  4. Step 4: Simplify right side
    543,310.20x = 153,506,945,404.53
  5. Step 5: Solve for x
    x = 153,506,945,404.53/543,310.20
  6. Step 6: Final answer
    x = 282,540.15

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Double scale
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Similar ratio
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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.