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Finding the Fourth Proportional to 625,163.83, 862,720.68 and 338,683.24

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Solution

The fourth proportional to 625,163.83, 862,720.68 and 338,683.24 is: 467,379.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,163.83 : 862,720.68 = 338,683.24 : x
  2. Step 2: Convert to fraction form
    625,163.83/862,720.68 = 338,683.24/x
  3. Step 3: Cross multiply
    625,163.83x = 862,720.68 × 338,683.24
  4. Step 4: Simplify right side
    625,163.83x = 292,189,032,159.31
  5. Step 5: Solve for x
    x = 292,189,032,159.31/625,163.83
  6. Step 6: Final answer
    x = 467,379.93

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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.