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Finding the Fourth Proportional to 698,266.77, 963,608.77 and 396,460.77

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Solution

The fourth proportional to 698,266.77, 963,608.77 and 396,460.77 is: 547,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    698,266.77 : 963,608.77 = 396,460.77 : x
  2. Step 2: Convert to fraction form
    698,266.77/963,608.77 = 396,460.77/x
  3. Step 3: Cross multiply
    698,266.77x = 963,608.77 × 396,460.77
  4. Step 4: Simplify right side
    698,266.77x = 382,033,074,932.95
  5. Step 5: Solve for x
    x = 382,033,074,932.95/698,266.77
  6. Step 6: Final answer
    x = 547,116.22

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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.