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Finding the Fourth Proportional to 404,450.40, 606,704.40 and 123,967.20

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Solution

The fourth proportional to 404,450.40, 606,704.40 and 123,967.20 is: 185,959.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,450.40 : 606,704.40 = 123,967.20 : x
  2. Step 2: Convert to fraction form
    404,450.40/606,704.40 = 123,967.20/x
  3. Step 3: Cross multiply
    404,450.40x = 606,704.40 × 123,967.20
  4. Step 4: Simplify right side
    404,450.40x = 75,211,445,695.68
  5. Step 5: Solve for x
    x = 75,211,445,695.68/404,450.40
  6. Step 6: Final answer
    x = 185,959.63

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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.