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Finding the Fourth Proportional to 468,959.10, 647,269.80 and 265,127.95

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Solution

The fourth proportional to 468,959.10, 647,269.80 and 265,127.95 is: 365,936.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    468,959.10 : 647,269.80 = 265,127.95 : x
  2. Step 2: Convert to fraction form
    468,959.10/647,269.80 = 265,127.95/x
  3. Step 3: Cross multiply
    468,959.10x = 647,269.80 × 265,127.95
  4. Step 4: Simplify right side
    468,959.10x = 171,609,315,170.91
  5. Step 5: Solve for x
    x = 171,609,315,170.91/468,959.10
  6. Step 6: Final answer
    x = 365,936.64

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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.