Home / 1,312,768.20-1,811,617.41-709,156.20

Finding the Fourth Proportional to 1,312,768.20, 1,811,617.41 and 709,156.20

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Solution

The fourth proportional to 1,312,768.20, 1,811,617.41 and 709,156.20 is: 978,634.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,312,768.20 : 1,811,617.41 = 709,156.20 : x
  2. Step 2: Convert to fraction form
    1,312,768.20/1,811,617.41 = 709,156.20/x
  3. Step 3: Cross multiply
    1,312,768.20x = 1,811,617.41 × 709,156.20
  4. Step 4: Simplify right side
    1,312,768.20x = 1,284,719,718,329.44
  5. Step 5: Solve for x
    x = 1,284,719,718,329.44/1,312,768.20
  6. Step 6: Final answer
    x = 978,634.09

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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.