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Finding the Fourth Proportional to 661,517.76, 911,846.40 and 606,600.96

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Solution

The fourth proportional to 661,517.76, 911,846.40 and 606,600.96 is: 836,148.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,517.76 : 911,846.40 = 606,600.96 : x
  2. Step 2: Convert to fraction form
    661,517.76/911,846.40 = 606,600.96/x
  3. Step 3: Cross multiply
    661,517.76x = 911,846.40 × 606,600.96
  4. Step 4: Simplify right side
    661,517.76x = 553,126,901,612.54
  5. Step 5: Solve for x
    x = 553,126,901,612.54/661,517.76
  6. Step 6: Final answer
    x = 836,148.23

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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.