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Finding the Fourth Proportional to 310,073.40, 465,110.10 and 220,843.80

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Solution

The fourth proportional to 310,073.40, 465,110.10 and 220,843.80 is: 331,265.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,073.40 : 465,110.10 = 220,843.80 : x
  2. Step 2: Convert to fraction form
    310,073.40/465,110.10 = 220,843.80/x
  3. Step 3: Cross multiply
    310,073.40x = 465,110.10 × 220,843.80
  4. Step 4: Simplify right side
    310,073.40x = 102,716,681,902.38
  5. Step 5: Solve for x
    x = 102,716,681,902.38/310,073.40
  6. Step 6: Final answer
    x = 331,265.70

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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.