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Finding the Fourth Proportional to 716,092.66, 988,233.24 and 393,827.68

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Solution

The fourth proportional to 716,092.66, 988,233.24 and 393,827.68 is: 543,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    716,092.66 : 988,233.24 = 393,827.68 : x
  2. Step 2: Convert to fraction form
    716,092.66/988,233.24 = 393,827.68/x
  3. Step 3: Cross multiply
    716,092.66x = 988,233.24 × 393,827.68
  4. Step 4: Simplify right side
    716,092.66x = 389,193,604,208.08
  5. Step 5: Solve for x
    x = 389,193,604,208.08/716,092.66
  6. Step 6: Final answer
    x = 543,496.15

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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.