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Finding the Fourth Proportional to 1,888,273.20, 2,839,408.20 and 1,580,343.60

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Solution

The fourth proportional to 1,888,273.20, 2,839,408.20 and 1,580,343.60 is: 2,376,372.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,888,273.20 : 2,839,408.20 = 1,580,343.60 : x
  2. Step 2: Convert to fraction form
    1,888,273.20/2,839,408.20 = 1,580,343.60/x
  3. Step 3: Cross multiply
    1,888,273.20x = 2,839,408.20 × 1,580,343.60
  4. Step 4: Simplify right side
    1,888,273.20x = 4,487,240,576,657.52
  5. Step 5: Solve for x
    x = 4,487,240,576,657.52/1,888,273.20
  6. Step 6: Final answer
    x = 2,376,372.54

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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.