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Finding the Fourth Proportional to 404,443.40, 606,693.90 and 123,960.20

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Solution

The fourth proportional to 404,443.40, 606,693.90 and 123,960.20 is: 185,949.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,443.40 : 606,693.90 = 123,960.20 : x
  2. Step 2: Convert to fraction form
    404,443.40/606,693.90 = 123,960.20/x
  3. Step 3: Cross multiply
    404,443.40x = 606,693.90 × 123,960.20
  4. Step 4: Simplify right side
    404,443.40x = 75,205,897,182.78
  5. Step 5: Solve for x
    x = 75,205,897,182.78/404,443.40
  6. Step 6: Final answer
    x = 185,949.13

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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.