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Finding the Fourth Proportional to 364,049.20, 546,073.80 and 328,619.80

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Solution

The fourth proportional to 364,049.20, 546,073.80 and 328,619.80 is: 492,929.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    364,049.20 : 546,073.80 = 328,619.80 : x
  2. Step 2: Convert to fraction form
    364,049.20/546,073.80 = 328,619.80/x
  3. Step 3: Cross multiply
    364,049.20x = 546,073.80 × 328,619.80
  4. Step 4: Simplify right side
    364,049.20x = 179,450,662,941.24
  5. Step 5: Solve for x
    x = 179,450,662,941.24/364,049.20
  6. Step 6: Final answer
    x = 492,929.70

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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.