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Finding the Fourth Proportional to 625,436.37, 863,102.07 and 338,956.47

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Solution

The fourth proportional to 625,436.37, 863,102.07 and 338,956.47 is: 467,759.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,436.37 : 863,102.07 = 338,956.47 : x
  2. Step 2: Convert to fraction form
    625,436.37/863,102.07 = 338,956.47/x
  3. Step 3: Cross multiply
    625,436.37x = 863,102.07 × 338,956.47
  4. Step 4: Simplify right side
    625,436.37x = 292,554,030,896.89
  5. Step 5: Solve for x
    x = 292,554,030,896.89/625,436.37
  6. Step 6: Final answer
    x = 467,759.86

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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.