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Finding the Fourth Proportional to 541,733.40, 812,729.70 and 261,019.80

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Solution

The fourth proportional to 541,733.40, 812,729.70 and 261,019.80 is: 391,592.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,733.40 : 812,729.70 = 261,019.80 : x
  2. Step 2: Convert to fraction form
    541,733.40/812,729.70 = 261,019.80/x
  3. Step 3: Cross multiply
    541,733.40x = 812,729.70 × 261,019.80
  4. Step 4: Simplify right side
    541,733.40x = 212,138,543,748.06
  5. Step 5: Solve for x
    x = 212,138,543,748.06/541,733.40
  6. Step 6: Final answer
    x = 391,592.14

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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.