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Finding the Fourth Proportional to 625,108.16, 862,651.90 and 338,628.24

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Solution

The fourth proportional to 625,108.16, 862,651.90 and 338,628.24 is: 467,308.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,108.16 : 862,651.90 = 338,628.24 : x
  2. Step 2: Convert to fraction form
    625,108.16/862,651.90 = 338,628.24/x
  3. Step 3: Cross multiply
    625,108.16x = 862,651.90 × 338,628.24
  4. Step 4: Simplify right side
    625,108.16x = 292,118,294,629.66
  5. Step 5: Solve for x
    x = 292,118,294,629.66/625,108.16
  6. Step 6: Final answer
    x = 467,308.40

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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.