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Finding the Fourth Proportional to 625,085.93, 862,615.73 and 338,606.75

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Solution

The fourth proportional to 625,085.93, 862,615.73 and 338,606.75 is: 467,275.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,085.93 : 862,615.73 = 338,606.75 : x
  2. Step 2: Convert to fraction form
    625,085.93/862,615.73 = 338,606.75/x
  3. Step 3: Cross multiply
    625,085.93x = 862,615.73 × 338,606.75
  4. Step 4: Simplify right side
    625,085.93x = 292,087,511,837.23
  5. Step 5: Solve for x
    x = 292,087,511,837.23/625,085.93
  6. Step 6: Final answer
    x = 467,275.77

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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.