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Finding the Fourth Proportional to 827,187.90, 1,155,701.10 and 827,187.90

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Solution

The fourth proportional to 827,187.90, 1,155,701.10 and 827,187.90 is: 1,155,701.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    827,187.90 : 1,155,701.10 = 827,187.90 : x
  2. Step 2: Convert to fraction form
    827,187.90/1,155,701.10 = 827,187.90/x
  3. Step 3: Cross multiply
    827,187.90x = 1,155,701.10 × 827,187.90
  4. Step 4: Simplify right side
    827,187.90x = 955,981,965,936.69
  5. Step 5: Solve for x
    x = 955,981,965,936.69/827,187.90
  6. Step 6: Final answer
    x = 1,155,701.10

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.