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Finding the Fourth Proportional to 576,965.44, 796,196.72 and 315,310.40

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Solution

The fourth proportional to 576,965.44, 796,196.72 and 315,310.40 is: 435,119.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,965.44 : 796,196.72 = 315,310.40 : x
  2. Step 2: Convert to fraction form
    576,965.44/796,196.72 = 315,310.40/x
  3. Step 3: Cross multiply
    576,965.44x = 796,196.72 × 315,310.40
  4. Step 4: Simplify right side
    576,965.44x = 251,049,106,261.89
  5. Step 5: Solve for x
    x = 251,049,106,261.89/576,965.44
  6. Step 6: Final answer
    x = 435,119.83

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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.