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Finding the Fourth Proportional to 541,741.40, 812,741.70 and 261,027.80

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Solution

The fourth proportional to 541,741.40, 812,741.70 and 261,027.80 is: 391,604.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,741.40 : 812,741.70 = 261,027.80 : x
  2. Step 2: Convert to fraction form
    541,741.40/812,741.70 = 261,027.80/x
  3. Step 3: Cross multiply
    541,741.40x = 812,741.70 × 261,027.80
  4. Step 4: Simplify right side
    541,741.40x = 212,148,177,919.26
  5. Step 5: Solve for x
    x = 212,148,177,919.26/541,741.40
  6. Step 6: Final answer
    x = 391,604.15

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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.