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Finding the Fourth Proportional to 369,860.80, 554,467.20 and 251,147.20

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Solution

The fourth proportional to 369,860.80, 554,467.20 and 251,147.20 is: 376,500.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,860.80 : 554,467.20 = 251,147.20 : x
  2. Step 2: Convert to fraction form
    369,860.80/554,467.20 = 251,147.20/x
  3. Step 3: Cross multiply
    369,860.80x = 554,467.20 × 251,147.20
  4. Step 4: Simplify right side
    369,860.80x = 139,252,884,771.84
  5. Step 5: Solve for x
    x = 139,252,884,771.84/369,860.80
  6. Step 6: Final answer
    x = 376,500.79

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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.