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Finding the Fourth Proportional to 1,835,003.60, 2,751,387.60 and 823,929.20

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Solution

The fourth proportional to 1,835,003.60, 2,751,387.60 and 823,929.20 is: 1,235,391.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,835,003.60 : 2,751,387.60 = 823,929.20 : x
  2. Step 2: Convert to fraction form
    1,835,003.60/2,751,387.60 = 823,929.20/x
  3. Step 3: Cross multiply
    1,835,003.60x = 2,751,387.60 × 823,929.20
  4. Step 4: Simplify right side
    1,835,003.60x = 2,266,948,584,157.92
  5. Step 5: Solve for x
    x = 2,266,948,584,157.92/1,835,003.60
  6. Step 6: Final answer
    x = 1,235,391.90

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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.