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Finding the Fourth Proportional to 458,345.71, 632,512.31 and 254,398.41

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Solution

The fourth proportional to 458,345.71, 632,512.31 and 254,398.41 is: 351,067.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,345.71 : 632,512.31 = 254,398.41 : x
  2. Step 2: Convert to fraction form
    458,345.71/632,512.31 = 254,398.41/x
  3. Step 3: Cross multiply
    458,345.71x = 632,512.31 × 254,398.41
  4. Step 4: Simplify right side
    458,345.71x = 160,910,122,806.87
  5. Step 5: Solve for x
    x = 160,910,122,806.87/458,345.71
  6. Step 6: Final answer
    x = 351,067.16

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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.