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Finding the Fourth Proportional to 630,540.40, 944,255.40 and 419,033.20

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Solution

The fourth proportional to 630,540.40, 944,255.40 and 419,033.20 is: 627,516.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,540.40 : 944,255.40 = 419,033.20 : x
  2. Step 2: Convert to fraction form
    630,540.40/944,255.40 = 419,033.20/x
  3. Step 3: Cross multiply
    630,540.40x = 944,255.40 × 419,033.20
  4. Step 4: Simplify right side
    630,540.40x = 395,674,361,879.28
  5. Step 5: Solve for x
    x = 395,674,361,879.28/630,540.40
  6. Step 6: Final answer
    x = 627,516.27

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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.