Home / 819,712.04-1,131,200.39-457,136.29

Finding the Fourth Proportional to 819,712.04, 1,131,200.39 and 457,136.29

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Solution

The fourth proportional to 819,712.04, 1,131,200.39 and 457,136.29 is: 630,846.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,712.04 : 1,131,200.39 = 457,136.29 : x
  2. Step 2: Convert to fraction form
    819,712.04/1,131,200.39 = 457,136.29/x
  3. Step 3: Cross multiply
    819,712.04x = 1,131,200.39 × 457,136.29
  4. Step 4: Simplify right side
    819,712.04x = 517,112,741,589.47
  5. Step 5: Solve for x
    x = 517,112,741,589.47/819,712.04
  6. Step 6: Final answer
    x = 630,846.83

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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.