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Finding the Fourth Proportional to 536,930.05, 803,642.63 and 394,737.69

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Solution

The fourth proportional to 536,930.05, 803,642.63 and 394,737.69 is: 590,818.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,930.05 : 803,642.63 = 394,737.69 : x
  2. Step 2: Convert to fraction form
    536,930.05/803,642.63 = 394,737.69/x
  3. Step 3: Cross multiply
    536,930.05x = 803,642.63 × 394,737.69
  4. Step 4: Simplify right side
    536,930.05x = 317,228,035,351.73
  5. Step 5: Solve for x
    x = 317,228,035,351.73/536,930.05
  6. Step 6: Final answer
    x = 590,818.18

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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.