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Finding the Fourth Proportional to 469,272.87, 647,588.12 and 265,320.27

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Solution

The fourth proportional to 469,272.87, 647,588.12 and 265,320.27 is: 366,137.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,272.87 : 647,588.12 = 265,320.27 : x
  2. Step 2: Convert to fraction form
    469,272.87/647,588.12 = 265,320.27/x
  3. Step 3: Cross multiply
    469,272.87x = 647,588.12 × 265,320.27
  4. Step 4: Simplify right side
    469,272.87x = 171,818,253,520.59
  5. Step 5: Solve for x
    x = 171,818,253,520.59/469,272.87
  6. Step 6: Final answer
    x = 366,137.20

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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.