Home / 814,288.20-1,221,432.30-683,651.40

Finding the Fourth Proportional to 814,288.20, 1,221,432.30 and 683,651.40

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Solution

The fourth proportional to 814,288.20, 1,221,432.30 and 683,651.40 is: 1,025,477.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,288.20 : 1,221,432.30 = 683,651.40 : x
  2. Step 2: Convert to fraction form
    814,288.20/1,221,432.30 = 683,651.40/x
  3. Step 3: Cross multiply
    814,288.20x = 1,221,432.30 × 683,651.40
  4. Step 4: Simplify right side
    814,288.20x = 835,033,901,900.22
  5. Step 5: Solve for x
    x = 835,033,901,900.22/814,288.20
  6. Step 6: Final answer
    x = 1,025,477.10

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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.