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Finding the Fourth Proportional to 469,278.88, 647,596.38 and 265,326.28

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Solution

The fourth proportional to 469,278.88, 647,596.38 and 265,326.28 is: 366,145.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,278.88 : 647,596.38 = 265,326.28 : x
  2. Step 2: Convert to fraction form
    469,278.88/647,596.38 = 265,326.28/x
  3. Step 3: Cross multiply
    469,278.88x = 647,596.38 × 265,326.28
  4. Step 4: Simplify right side
    469,278.88x = 171,824,338,446.87
  5. Step 5: Solve for x
    x = 171,824,338,446.87/469,278.88
  6. Step 6: Final answer
    x = 366,145.48

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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.