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Finding the Fourth Proportional to 1,042,874, 1,439,166.12 and 565,946

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Solution

The fourth proportional to 1,042,874, 1,439,166.12 and 565,946 is: 781,005.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,042,874 : 1,439,166.12 = 565,946 : x
  2. Step 2: Convert to fraction form
    1,042,874/1,439,166.12 = 565,946/x
  3. Step 3: Cross multiply
    1,042,874x = 1,439,166.12 × 565,946
  4. Step 4: Simplify right side
    1,042,874x = 814,490,308,949.52
  5. Step 5: Solve for x
    x = 814,490,308,949.52/1,042,874
  6. Step 6: Final answer
    x = 781,005.48

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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.