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Finding the Fourth Proportional to 770,846.88, 1,063,065.83 and 661,917

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Solution

The fourth proportional to 770,846.88, 1,063,065.83 and 661,917 is: 912,841.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,846.88 : 1,063,065.83 = 661,917 : x
  2. Step 2: Convert to fraction form
    770,846.88/1,063,065.83 = 661,917/x
  3. Step 3: Cross multiply
    770,846.88x = 1,063,065.83 × 661,917
  4. Step 4: Simplify right side
    770,846.88x = 703,661,344,996.11
  5. Step 5: Solve for x
    x = 703,661,344,996.11/770,846.88
  6. Step 6: Final answer
    x = 912,841.92

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1.5x scale

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.