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Finding the Fourth Proportional to 453,385.30, 625,715.87 and 338,464.39

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Solution

The fourth proportional to 453,385.30, 625,715.87 and 338,464.39 is: 467,113.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,385.30 : 625,715.87 = 338,464.39 : x
  2. Step 2: Convert to fraction form
    453,385.30/625,715.87 = 338,464.39/x
  3. Step 3: Cross multiply
    453,385.30x = 625,715.87 × 338,464.39
  4. Step 4: Simplify right side
    453,385.30x = 211,782,540,252.87
  5. Step 5: Solve for x
    x = 211,782,540,252.87/453,385.30
  6. Step 6: Final answer
    x = 467,113.82

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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.