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Finding the Fourth Proportional to 369,822.80, 554,410.20 and 251,109.20

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Solution

The fourth proportional to 369,822.80, 554,410.20 and 251,109.20 is: 376,443.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,822.80 : 554,410.20 = 251,109.20 : x
  2. Step 2: Convert to fraction form
    369,822.80/554,410.20 = 251,109.20/x
  3. Step 3: Cross multiply
    369,822.80x = 554,410.20 × 251,109.20
  4. Step 4: Simplify right side
    369,822.80x = 139,217,501,793.84
  5. Step 5: Solve for x
    x = 139,217,501,793.84/369,822.80
  6. Step 6: Final answer
    x = 376,443.80

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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.