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Finding the Fourth Proportional to 625,043.44, 862,559.56 and 338,562.80

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Solution

The fourth proportional to 625,043.44, 862,559.56 and 338,562.80 is: 467,216.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,043.44 : 862,559.56 = 338,562.80 : x
  2. Step 2: Convert to fraction form
    625,043.44/862,559.56 = 338,562.80/x
  3. Step 3: Cross multiply
    625,043.44x = 862,559.56 × 338,562.80
  4. Step 4: Simplify right side
    625,043.44x = 292,030,579,800.37
  5. Step 5: Solve for x
    x = 292,030,579,800.37/625,043.44
  6. Step 6: Final answer
    x = 467,216.45

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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.