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Finding the Fourth Proportional to 546,301.70, 819,820.69 and 191,318.79

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Solution

The fourth proportional to 546,301.70, 819,820.69 and 191,318.79 is: 287,107.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,301.70 : 819,820.69 = 191,318.79 : x
  2. Step 2: Convert to fraction form
    546,301.70/819,820.69 = 191,318.79/x
  3. Step 3: Cross multiply
    546,301.70x = 819,820.69 × 191,318.79
  4. Step 4: Simplify right side
    546,301.70x = 156,847,106,099.96
  5. Step 5: Solve for x
    x = 156,847,106,099.96/546,301.70
  6. Step 6: Final answer
    x = 287,107.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.