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Finding the Fourth Proportional to 625,421.52, 863,078.04 and 338,941.44

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Solution

The fourth proportional to 625,421.52, 863,078.04 and 338,941.44 is: 467,737.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    625,421.52 : 863,078.04 = 338,941.44 : x
  2. Step 2: Convert to fraction form
    625,421.52/863,078.04 = 338,941.44/x
  3. Step 3: Cross multiply
    625,421.52x = 863,078.04 × 338,941.44
  4. Step 4: Simplify right side
    625,421.52x = 292,532,913,709.98
  5. Step 5: Solve for x
    x = 292,532,913,709.98/625,421.52
  6. Step 6: Final answer
    x = 467,737.20

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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.