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Finding the Fourth Proportional to 1,351,860.03, 1,865,568.51 and 842,562

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Solution

The fourth proportional to 1,351,860.03, 1,865,568.51 and 842,562 is: 1,162,736.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,351,860.03 : 1,865,568.51 = 842,562 : x
  2. Step 2: Convert to fraction form
    1,351,860.03/1,865,568.51 = 842,562/x
  3. Step 3: Cross multiply
    1,351,860.03x = 1,865,568.51 × 842,562
  4. Step 4: Simplify right side
    1,351,860.03x = 1,571,857,134,922.62
  5. Step 5: Solve for x
    x = 1,571,857,134,922.62/1,351,860.03
  6. Step 6: Final answer
    x = 1,162,736.60

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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.