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Finding the Fourth Proportional to 1,836,824.18, 2,755,264.61 and 699,649.79

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Solution

The fourth proportional to 1,836,824.18, 2,755,264.61 and 699,649.79 is: 1,049,485.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,836,824.18 : 2,755,264.61 = 699,649.79 : x
  2. Step 2: Convert to fraction form
    1,836,824.18/2,755,264.61 = 699,649.79/x
  3. Step 3: Cross multiply
    1,836,824.18x = 2,755,264.61 × 699,649.79
  4. Step 4: Simplify right side
    1,836,824.18x = 1,927,720,293,753.73
  5. Step 5: Solve for x
    x = 1,927,720,293,753.73/1,836,824.18
  6. Step 6: Final answer
    x = 1,049,485.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.