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Finding the Fourth Proportional to 1,063,938.80, 1,595,908.20 and 965,961.20

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Solution

The fourth proportional to 1,063,938.80, 1,595,908.20 and 965,961.20 is: 1,448,941.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,063,938.80 : 1,595,908.20 = 965,961.20 : x
  2. Step 2: Convert to fraction form
    1,063,938.80/1,595,908.20 = 965,961.20/x
  3. Step 3: Cross multiply
    1,063,938.80x = 1,595,908.20 × 965,961.20
  4. Step 4: Simplify right side
    1,063,938.80x = 1,541,585,399,961.84
  5. Step 5: Solve for x
    x = 1,541,585,399,961.84/1,063,938.80
  6. Step 6: Final answer
    x = 1,448,941.80

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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.