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Finding the Fourth Proportional to 541,443.87, 747,199.08 and 299,748.78

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Solution

The fourth proportional to 541,443.87, 747,199.08 and 299,748.78 is: 413,656.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,443.87 : 747,199.08 = 299,748.78 : x
  2. Step 2: Convert to fraction form
    541,443.87/747,199.08 = 299,748.78/x
  3. Step 3: Cross multiply
    541,443.87x = 747,199.08 × 299,748.78
  4. Step 4: Simplify right side
    541,443.87x = 223,972,012,647.12
  5. Step 5: Solve for x
    x = 223,972,012,647.12/541,443.87
  6. Step 6: Final answer
    x = 413,656.94

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.