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Finding the Fourth Proportional to 625,083.62, 862,615.32 and 338,603.63

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Solution

The fourth proportional to 625,083.62, 862,615.32 and 338,603.63 is: 467,272.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,083.62 : 862,615.32 = 338,603.63 : x
  2. Step 2: Convert to fraction form
    625,083.62/862,615.32 = 338,603.63/x
  3. Step 3: Cross multiply
    625,083.62x = 862,615.32 × 338,603.63
  4. Step 4: Simplify right side
    625,083.62x = 292,084,674,332.54
  5. Step 5: Solve for x
    x = 292,084,674,332.54/625,083.62
  6. Step 6: Final answer
    x = 467,272.97

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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.