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Finding the Fourth Proportional to 364,536.80, 546,805.20 and 251,979.20

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Solution

The fourth proportional to 364,536.80, 546,805.20 and 251,979.20 is: 377,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,536.80 : 546,805.20 = 251,979.20 : x
  2. Step 2: Convert to fraction form
    364,536.80/546,805.20 = 251,979.20/x
  3. Step 3: Cross multiply
    364,536.80x = 546,805.20 × 251,979.20
  4. Step 4: Simplify right side
    364,536.80x = 137,783,536,851.84
  5. Step 5: Solve for x
    x = 137,783,536,851.84/364,536.80
  6. Step 6: Final answer
    x = 377,968.80

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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.