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Finding the Fourth Proportional to 591,181.71, 815,538.47 and 349,347.30

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Solution

The fourth proportional to 591,181.71, 815,538.47 and 349,347.30 is: 481,926.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    591,181.71 : 815,538.47 = 349,347.30 : x
  2. Step 2: Convert to fraction form
    591,181.71/815,538.47 = 349,347.30/x
  3. Step 3: Cross multiply
    591,181.71x = 815,538.47 × 349,347.30
  4. Step 4: Simplify right side
    591,181.71x = 284,906,158,462.94
  5. Step 5: Solve for x
    x = 284,906,158,462.94/591,181.71
  6. Step 6: Final answer
    x = 481,926.55

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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.