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Finding the Fourth Proportional to 1,351,895.52, 1,865,559.56 and 740,033.09

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Solution

The fourth proportional to 1,351,895.52, 1,865,559.56 and 740,033.09 is: 1,021,214.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,895.52 : 1,865,559.56 = 740,033.09 : x
  2. Step 2: Convert to fraction form
    1,351,895.52/1,865,559.56 = 740,033.09/x
  3. Step 3: Cross multiply
    1,351,895.52x = 1,865,559.56 × 740,033.09
  4. Step 4: Simplify right side
    1,351,895.52x = 1,380,575,792,737.88
  5. Step 5: Solve for x
    x = 1,380,575,792,737.88/1,351,895.52
  6. Step 6: Final answer
    x = 1,021,214.86

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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.