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Finding the Fourth Proportional to 625,453.39, 863,102.49 and 338,967.34

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Solution

The fourth proportional to 625,453.39, 863,102.49 and 338,967.34 is: 467,762.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,453.39 : 863,102.49 = 338,967.34 : x
  2. Step 2: Convert to fraction form
    625,453.39/863,102.49 = 338,967.34/x
  3. Step 3: Cross multiply
    625,453.39x = 863,102.49 × 338,967.34
  4. Step 4: Simplify right side
    625,453.39x = 292,563,555,182.68
  5. Step 5: Solve for x
    x = 292,563,555,182.68/625,453.39
  6. Step 6: Final answer
    x = 467,762.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.