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Finding the Fourth Proportional to 576,843.39, 796,039.11 and 318,719.52

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Solution

The fourth proportional to 576,843.39, 796,039.11 and 318,719.52 is: 439,830.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,843.39 : 796,039.11 = 318,719.52 : x
  2. Step 2: Convert to fraction form
    576,843.39/796,039.11 = 318,719.52/x
  3. Step 3: Cross multiply
    576,843.39x = 796,039.11 × 318,719.52
  4. Step 4: Simplify right side
    576,843.39x = 253,713,203,040.43
  5. Step 5: Solve for x
    x = 253,713,203,040.43/576,843.39
  6. Step 6: Final answer
    x = 439,830.30

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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.