Home / 805,469.20-1,206,821.40-383,837.20

Finding the Fourth Proportional to 805,469.20, 1,206,821.40 and 383,837.20

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Solution

The fourth proportional to 805,469.20, 1,206,821.40 and 383,837.20 is: 575,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,469.20 : 1,206,821.40 = 383,837.20 : x
  2. Step 2: Convert to fraction form
    805,469.20/1,206,821.40 = 383,837.20/x
  3. Step 3: Cross multiply
    805,469.20x = 1,206,821.40 × 383,837.20
  4. Step 4: Simplify right side
    805,469.20x = 463,222,947,076.08
  5. Step 5: Solve for x
    x = 463,222,947,076.08/805,469.20
  6. Step 6: Final answer
    x = 575,097.03

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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.