Home / 819,710.54-1,131,198.32-457,134.79

Finding the Fourth Proportional to 819,710.54, 1,131,198.32 and 457,134.79

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Solution

The fourth proportional to 819,710.54, 1,131,198.32 and 457,134.79 is: 630,844.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,710.54 : 1,131,198.32 = 457,134.79 : x
  2. Step 2: Convert to fraction form
    819,710.54/1,131,198.32 = 457,134.79/x
  3. Step 3: Cross multiply
    819,710.54x = 1,131,198.32 × 457,134.79
  4. Step 4: Simplify right side
    819,710.54x = 517,110,098,519.89
  5. Step 5: Solve for x
    x = 517,110,098,519.89/819,710.54
  6. Step 6: Final answer
    x = 630,844.76

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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.