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Finding the Fourth Proportional to 462,960.39, 693,646.90 and 310,872.39

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Solution

The fourth proportional to 462,960.39, 693,646.90 and 310,872.39 is: 465,775.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,960.39 : 693,646.90 = 310,872.39 : x
  2. Step 2: Convert to fraction form
    462,960.39/693,646.90 = 310,872.39/x
  3. Step 3: Cross multiply
    462,960.39x = 693,646.90 × 310,872.39
  4. Step 4: Simplify right side
    462,960.39x = 215,635,669,619.09
  5. Step 5: Solve for x
    x = 215,635,669,619.09/462,960.39
  6. Step 6: Final answer
    x = 465,775.63

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.