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Finding the Fourth Proportional to 624,826.39, 862,264.52 and 338,346.49

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Solution

The fourth proportional to 624,826.39, 862,264.52 and 338,346.49 is: 466,920.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,826.39 : 862,264.52 = 338,346.49 : x
  2. Step 2: Convert to fraction form
    624,826.39/862,264.52 = 338,346.49/x
  3. Step 3: Cross multiply
    624,826.39x = 862,264.52 × 338,346.49
  4. Step 4: Simplify right side
    624,826.39x = 291,744,173,793.54
  5. Step 5: Solve for x
    x = 291,744,173,793.54/624,826.39
  6. Step 6: Final answer
    x = 466,920.38

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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.