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Finding the Fourth Proportional to 362,479.60, 543,719.40 and 329,820.40

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Solution

The fourth proportional to 362,479.60, 543,719.40 and 329,820.40 is: 494,730.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,479.60 : 543,719.40 = 329,820.40 : x
  2. Step 2: Convert to fraction form
    362,479.60/543,719.40 = 329,820.40/x
  3. Step 3: Cross multiply
    362,479.60x = 543,719.40 × 329,820.40
  4. Step 4: Simplify right side
    362,479.60x = 179,329,749,995.76
  5. Step 5: Solve for x
    x = 179,329,749,995.76/362,479.60
  6. Step 6: Final answer
    x = 494,730.60

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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.