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Finding the Fourth Proportional to 1,267,995.75, 1,749,834.54 and 695,039.82

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Solution

The fourth proportional to 1,267,995.75, 1,749,834.54 and 695,039.82 is: 959,155.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,995.75 : 1,749,834.54 = 695,039.82 : x
  2. Step 2: Convert to fraction form
    1,267,995.75/1,749,834.54 = 695,039.82/x
  3. Step 3: Cross multiply
    1,267,995.75x = 1,749,834.54 × 695,039.82
  4. Step 4: Simplify right side
    1,267,995.75x = 1,216,204,683,711.38
  5. Step 5: Solve for x
    x = 1,216,204,683,711.38/1,267,995.75
  6. Step 6: Final answer
    x = 959,155.17

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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.