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Finding the Fourth Proportional to 350,498.28, 483,687.87 and 189,353.28

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Solution

The fourth proportional to 350,498.28, 483,687.87 and 189,353.28 is: 261,307.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,498.28 : 483,687.87 = 189,353.28 : x
  2. Step 2: Convert to fraction form
    350,498.28/483,687.87 = 189,353.28/x
  3. Step 3: Cross multiply
    350,498.28x = 483,687.87 × 189,353.28
  4. Step 4: Simplify right side
    350,498.28x = 91,587,884,680.71
  5. Step 5: Solve for x
    x = 91,587,884,680.71/350,498.28
  6. Step 6: Final answer
    x = 261,307.66

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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.