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Finding the Fourth Proportional to 362,429.30, 543,125.55 and 266,914.10

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Solution

The fourth proportional to 362,429.30, 543,125.55 and 266,914.10 is: 399,989.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,429.30 : 543,125.55 = 266,914.10 : x
  2. Step 2: Convert to fraction form
    362,429.30/543,125.55 = 266,914.10/x
  3. Step 3: Cross multiply
    362,429.30x = 543,125.55 × 266,914.10
  4. Step 4: Simplify right side
    362,429.30x = 144,967,867,365.26
  5. Step 5: Solve for x
    x = 144,967,867,365.26/362,429.30
  6. Step 6: Final answer
    x = 399,989.37

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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.