Home / 819,788.53-1,131,310.18-457,235.88

Finding the Fourth Proportional to 819,788.53, 1,131,310.18 and 457,235.88

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Solution

The fourth proportional to 819,788.53, 1,131,310.18 and 457,235.88 is: 630,986.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,788.53 : 1,131,310.18 = 457,235.88 : x
  2. Step 2: Convert to fraction form
    819,788.53/1,131,310.18 = 457,235.88/x
  3. Step 3: Cross multiply
    819,788.53x = 1,131,310.18 × 457,235.88
  4. Step 4: Simplify right side
    819,788.53x = 517,275,605,705.26
  5. Step 5: Solve for x
    x = 517,275,605,705.26/819,788.53
  6. Step 6: Final answer
    x = 630,986.63

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Double scale
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1.5x scale

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.