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Finding the Fourth Proportional to 543,111.40, 814,667.10 and 344,313.10

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Solution

The fourth proportional to 543,111.40, 814,667.10 and 344,313.10 is: 516,469.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,111.40 : 814,667.10 = 344,313.10 : x
  2. Step 2: Convert to fraction form
    543,111.40/814,667.10 = 344,313.10/x
  3. Step 3: Cross multiply
    543,111.40x = 814,667.10 × 344,313.10
  4. Step 4: Simplify right side
    543,111.40x = 280,500,554,669.01
  5. Step 5: Solve for x
    x = 280,500,554,669.01/543,111.40
  6. Step 6: Final answer
    x = 516,469.65

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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.