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Finding the Fourth Proportional to 621,850.20, 932,544.90 and 201,139.80

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Solution

The fourth proportional to 621,850.20, 932,544.90 and 201,139.80 is: 301,635.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,850.20 : 932,544.90 = 201,139.80 : x
  2. Step 2: Convert to fraction form
    621,850.20/932,544.90 = 201,139.80/x
  3. Step 3: Cross multiply
    621,850.20x = 932,544.90 × 201,139.80
  4. Step 4: Simplify right side
    621,850.20x = 187,571,894,677.02
  5. Step 5: Solve for x
    x = 187,571,894,677.02/621,850.20
  6. Step 6: Final answer
    x = 301,635.18

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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.