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Finding the Fourth Proportional to 1,189,801.06, 1,787,995.34 and 1,160,959.18

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Solution

The fourth proportional to 1,189,801.06, 1,787,995.34 and 1,160,959.18 is: 1,744,652.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,801.06 : 1,787,995.34 = 1,160,959.18 : x
  2. Step 2: Convert to fraction form
    1,189,801.06/1,787,995.34 = 1,160,959.18/x
  3. Step 3: Cross multiply
    1,189,801.06x = 1,787,995.34 × 1,160,959.18
  4. Step 4: Simplify right side
    1,189,801.06x = 2,075,789,603,770.22
  5. Step 5: Solve for x
    x = 2,075,789,603,770.22/1,189,801.06
  6. Step 6: Final answer
    x = 1,744,652.68

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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.