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Finding the Fourth Proportional to 1,826,223.18, 2,739,708.39 and 627,989.88

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Solution

The fourth proportional to 1,826,223.18, 2,739,708.39 and 627,989.88 is: 942,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,826,223.18 : 2,739,708.39 = 627,989.88 : x
  2. Step 2: Convert to fraction form
    1,826,223.18/2,739,708.39 = 627,989.88/x
  3. Step 3: Cross multiply
    1,826,223.18x = 2,739,708.39 × 627,989.88
  4. Step 4: Simplify right side
    1,826,223.18x = 1,720,509,143,071.09
  5. Step 5: Solve for x
    x = 1,720,509,143,071.09/1,826,223.18
  6. Step 6: Final answer
    x = 942,113.30

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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.