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Finding the Fourth Proportional to 1,834,721.60, 2,752,519.80 and 887,313.20

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Solution

The fourth proportional to 1,834,721.60, 2,752,519.80 and 887,313.20 is: 1,331,181.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,721.60 : 2,752,519.80 = 887,313.20 : x
  2. Step 2: Convert to fraction form
    1,834,721.60/2,752,519.80 = 887,313.20/x
  3. Step 3: Cross multiply
    1,834,721.60x = 2,752,519.80 × 887,313.20
  4. Step 4: Simplify right side
    1,834,721.60x = 2,442,347,151,801.36
  5. Step 5: Solve for x
    x = 2,442,347,151,801.36/1,834,721.60
  6. Step 6: Final answer
    x = 1,331,181.34

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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.