Home / 781,515.30-1,171,398.15-444,717.30

Finding the Fourth Proportional to 781,515.30, 1,171,398.15 and 444,717.30

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Solution

The fourth proportional to 781,515.30, 1,171,398.15 and 444,717.30 is: 666,578.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,515.30 : 1,171,398.15 = 444,717.30 : x
  2. Step 2: Convert to fraction form
    781,515.30/1,171,398.15 = 444,717.30/x
  3. Step 3: Cross multiply
    781,515.30x = 1,171,398.15 × 444,717.30
  4. Step 4: Simplify right side
    781,515.30x = 520,941,022,493.00
  5. Step 5: Solve for x
    x = 520,941,022,493.00/781,515.30
  6. Step 6: Final answer
    x = 666,578.15

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Double scale
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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.