Home / 1,285,115.60-1,773,469.80-712,165.28

Finding the Fourth Proportional to 1,285,115.60, 1,773,469.80 and 712,165.28

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Solution

The fourth proportional to 1,285,115.60, 1,773,469.80 and 712,165.28 is: 982,793.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,115.60 : 1,773,469.80 = 712,165.28 : x
  2. Step 2: Convert to fraction form
    1,285,115.60/1,773,469.80 = 712,165.28/x
  3. Step 3: Cross multiply
    1,285,115.60x = 1,773,469.80 × 712,165.28
  4. Step 4: Simplify right side
    1,285,115.60x = 1,263,003,616,688.54
  5. Step 5: Solve for x
    x = 1,263,003,616,688.54/1,285,115.60
  6. Step 6: Final answer
    x = 982,793.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.