Home / 819,800.28-1,229,900.52-314,352.24

Finding the Fourth Proportional to 819,800.28, 1,229,900.52 and 314,352.24

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Solution

The fourth proportional to 819,800.28, 1,229,900.52 and 314,352.24 is: 471,605.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,800.28 : 1,229,900.52 = 314,352.24 : x
  2. Step 2: Convert to fraction form
    819,800.28/1,229,900.52 = 314,352.24/x
  3. Step 3: Cross multiply
    819,800.28x = 1,229,900.52 × 314,352.24
  4. Step 4: Simplify right side
    819,800.28x = 386,621,983,439.17
  5. Step 5: Solve for x
    x = 386,621,983,439.17/819,800.28
  6. Step 6: Final answer
    x = 471,605.09

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Double scale
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1.5x scale

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.