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Finding the Fourth Proportional to 364,544.80, 546,817.20 and 251,987.20

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Solution

The fourth proportional to 364,544.80, 546,817.20 and 251,987.20 is: 377,980.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,544.80 : 546,817.20 = 251,987.20 : x
  2. Step 2: Convert to fraction form
    364,544.80/546,817.20 = 251,987.20/x
  3. Step 3: Cross multiply
    364,544.80x = 546,817.20 × 251,987.20
  4. Step 4: Simplify right side
    364,544.80x = 137,790,935,139.84
  5. Step 5: Solve for x
    x = 137,790,935,139.84/364,544.80
  6. Step 6: Final answer
    x = 377,980.80

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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.