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Finding the Fourth Proportional to 514,793.28, 771,645.48 and 190,372.91

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Solution

The fourth proportional to 514,793.28, 771,645.48 and 190,372.91 is: 285,358.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,793.28 : 771,645.48 = 190,372.91 : x
  2. Step 2: Convert to fraction form
    514,793.28/771,645.48 = 190,372.91/x
  3. Step 3: Cross multiply
    514,793.28x = 771,645.48 × 190,372.91
  4. Step 4: Simplify right side
    514,793.28x = 146,900,395,515.95
  5. Step 5: Solve for x
    x = 146,900,395,515.95/514,793.28
  6. Step 6: Final answer
    x = 285,358.03

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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.