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Finding the Fourth Proportional to 543,299.70, 814,949.55 and 144,002.10

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Solution

The fourth proportional to 543,299.70, 814,949.55 and 144,002.10 is: 216,003.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,299.70 : 814,949.55 = 144,002.10 : x
  2. Step 2: Convert to fraction form
    543,299.70/814,949.55 = 144,002.10/x
  3. Step 3: Cross multiply
    543,299.70x = 814,949.55 × 144,002.10
  4. Step 4: Simplify right side
    543,299.70x = 117,354,446,594.06
  5. Step 5: Solve for x
    x = 117,354,446,594.06/543,299.70
  6. Step 6: Final answer
    x = 216,003.15

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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.