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Finding the Fourth Proportional to 1,791,927.14, 2,686,469.82 and 938,835.20

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Solution

The fourth proportional to 1,791,927.14, 2,686,469.82 and 938,835.20 is: 1,407,508.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,791,927.14 : 2,686,469.82 = 938,835.20 : x
  2. Step 2: Convert to fraction form
    1,791,927.14/2,686,469.82 = 938,835.20/x
  3. Step 3: Cross multiply
    1,791,927.14x = 2,686,469.82 × 938,835.20
  4. Step 4: Simplify right side
    1,791,927.14x = 2,522,152,417,321.31
  5. Step 5: Solve for x
    x = 2,522,152,417,321.31/1,791,927.14
  6. Step 6: Final answer
    x = 1,407,508.36

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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.