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Finding the Fourth Proportional to 1,834,987.60, 2,752,918.80 and 887,579.20

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Solution

The fourth proportional to 1,834,987.60, 2,752,918.80 and 887,579.20 is: 1,331,580.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,834,987.60 : 2,752,918.80 = 887,579.20 : x
  2. Step 2: Convert to fraction form
    1,834,987.60/2,752,918.80 = 887,579.20/x
  3. Step 3: Cross multiply
    1,834,987.60x = 2,752,918.80 × 887,579.20
  4. Step 4: Simplify right side
    1,834,987.60x = 2,443,433,466,168.96
  5. Step 5: Solve for x
    x = 2,443,433,466,168.96/1,834,987.60
  6. Step 6: Final answer
    x = 1,331,580.37

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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.