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Finding the Fourth Proportional to 534,443.40, 801,665.10 and 254,507.40

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Solution

The fourth proportional to 534,443.40, 801,665.10 and 254,507.40 is: 381,761.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,443.40 : 801,665.10 = 254,507.40 : x
  2. Step 2: Convert to fraction form
    534,443.40/801,665.10 = 254,507.40/x
  3. Step 3: Cross multiply
    534,443.40x = 801,665.10 × 254,507.40
  4. Step 4: Simplify right side
    534,443.40x = 204,029,700,271.74
  5. Step 5: Solve for x
    x = 204,029,700,271.74/534,443.40
  6. Step 6: Final answer
    x = 381,761.10

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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.