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Finding the Fourth Proportional to 592,991.33, 818,326.95 and 321,059.18

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Solution

The fourth proportional to 592,991.33, 818,326.95 and 321,059.18 is: 443,061.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    592,991.33 : 818,326.95 = 321,059.18 : x
  2. Step 2: Convert to fraction form
    592,991.33/818,326.95 = 321,059.18/x
  3. Step 3: Cross multiply
    592,991.33x = 818,326.95 × 321,059.18
  4. Step 4: Simplify right side
    592,991.33x = 262,731,380,380.75
  5. Step 5: Solve for x
    x = 262,731,380,380.75/592,991.33
  6. Step 6: Final answer
    x = 443,061.09

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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.