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Finding the Fourth Proportional to 362,460.80, 543,691.20 and 339,132.80

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Solution

The fourth proportional to 362,460.80, 543,691.20 and 339,132.80 is: 508,699.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,460.80 : 543,691.20 = 339,132.80 : x
  2. Step 2: Convert to fraction form
    362,460.80/543,691.20 = 339,132.80/x
  3. Step 3: Cross multiply
    362,460.80x = 543,691.20 × 339,132.80
  4. Step 4: Simplify right side
    362,460.80x = 184,383,518,991.36
  5. Step 5: Solve for x
    x = 184,383,518,991.36/362,460.80
  6. Step 6: Final answer
    x = 508,699.20

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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.