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Finding the Fourth Proportional to 362,076.60, 543,114.90 and 321,641.40

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Solution

The fourth proportional to 362,076.60, 543,114.90 and 321,641.40 is: 482,462.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,076.60 : 543,114.90 = 321,641.40 : x
  2. Step 2: Convert to fraction form
    362,076.60/543,114.90 = 321,641.40/x
  3. Step 3: Cross multiply
    362,076.60x = 543,114.90 × 321,641.40
  4. Step 4: Simplify right side
    362,076.60x = 174,688,236,796.86
  5. Step 5: Solve for x
    x = 174,688,236,796.86/362,076.60
  6. Step 6: Final answer
    x = 482,462.10

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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.