Home / 1,285,178.70-1,773,617.20-712,206.57

Finding the Fourth Proportional to 1,285,178.70, 1,773,617.20 and 712,206.57

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Solution

The fourth proportional to 1,285,178.70, 1,773,617.20 and 712,206.57 is: 982,884.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,178.70 : 1,773,617.20 = 712,206.57 : x
  2. Step 2: Convert to fraction form
    1,285,178.70/1,773,617.20 = 712,206.57/x
  3. Step 3: Cross multiply
    1,285,178.70x = 1,773,617.20 × 712,206.57
  4. Step 4: Simplify right side
    1,285,178.70x = 1,263,181,822,505.00
  5. Step 5: Solve for x
    x = 1,263,181,822,505.00/1,285,178.70
  6. Step 6: Final answer
    x = 982,884.19

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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.