Home / 1,285,140.60-1,773,504.30-712,190.28

Finding the Fourth Proportional to 1,285,140.60, 1,773,504.30 and 712,190.28

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Solution

The fourth proportional to 1,285,140.60, 1,773,504.30 and 712,190.28 is: 982,828.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,140.60 : 1,773,504.30 = 712,190.28 : x
  2. Step 2: Convert to fraction form
    1,285,140.60/1,773,504.30 = 712,190.28/x
  3. Step 3: Cross multiply
    1,285,140.60x = 1,773,504.30 × 712,190.28
  4. Step 4: Simplify right side
    1,285,140.60x = 1,263,072,523,998.20
  5. Step 5: Solve for x
    x = 1,263,072,523,998.20/1,285,140.60
  6. Step 6: Final answer
    x = 982,828.28

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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.