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Finding the Fourth Proportional to 1,204,396.48, 1,657,894.80 and 1,040,977.90

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Solution

The fourth proportional to 1,204,396.48, 1,657,894.80 and 1,040,977.90 is: 1,432,943.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,204,396.48 : 1,657,894.80 = 1,040,977.90 : x
  2. Step 2: Convert to fraction form
    1,204,396.48/1,657,894.80 = 1,040,977.90/x
  3. Step 3: Cross multiply
    1,204,396.48x = 1,657,894.80 × 1,040,977.90
  4. Step 4: Simplify right side
    1,204,396.48x = 1,725,831,847,324.92
  5. Step 5: Solve for x
    x = 1,725,831,847,324.92/1,204,396.48
  6. Step 6: Final answer
    x = 1,432,943.28

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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.