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Finding the Fourth Proportional to 963,770.88, 1,327,862.70 and 636,502.68

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Solution

The fourth proportional to 963,770.88, 1,327,862.70 and 636,502.68 is: 876,959.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    963,770.88 : 1,327,862.70 = 636,502.68 : x
  2. Step 2: Convert to fraction form
    963,770.88/1,327,862.70 = 636,502.68/x
  3. Step 3: Cross multiply
    963,770.88x = 1,327,862.70 × 636,502.68
  4. Step 4: Simplify right side
    963,770.88x = 845,188,167,222.04
  5. Step 5: Solve for x
    x = 845,188,167,222.04/963,770.88
  6. Step 6: Final answer
    x = 876,959.64

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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.