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Finding the Fourth Proportional to 578,532.81, 798,353.23 and 316,883.97

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Solution

The fourth proportional to 578,532.81, 798,353.23 and 316,883.97 is: 437,287.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,532.81 : 798,353.23 = 316,883.97 : x
  2. Step 2: Convert to fraction form
    578,532.81/798,353.23 = 316,883.97/x
  3. Step 3: Cross multiply
    578,532.81x = 798,353.23 × 316,883.97
  4. Step 4: Simplify right side
    578,532.81x = 252,985,335,408.54
  5. Step 5: Solve for x
    x = 252,985,335,408.54/578,532.81
  6. Step 6: Final answer
    x = 437,287.79

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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.