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Finding the Fourth Proportional to 1,159,352.80, 1,743,694.80 and 1,038,047.20

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Solution

The fourth proportional to 1,159,352.80, 1,743,694.80 and 1,038,047.20 is: 1,561,248.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,159,352.80 : 1,743,694.80 = 1,038,047.20 : x
  2. Step 2: Convert to fraction form
    1,159,352.80/1,743,694.80 = 1,038,047.20/x
  3. Step 3: Cross multiply
    1,159,352.80x = 1,743,694.80 × 1,038,047.20
  4. Step 4: Simplify right side
    1,159,352.80x = 1,810,037,504,794.56
  5. Step 5: Solve for x
    x = 1,810,037,504,794.56/1,159,352.80
  6. Step 6: Final answer
    x = 1,561,248.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.