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Finding the Fourth Proportional to 362,402.40, 543,085.20 and 251,464.80

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Solution

The fourth proportional to 362,402.40, 543,085.20 and 251,464.80 is: 376,837.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,402.40 : 543,085.20 = 251,464.80 : x
  2. Step 2: Convert to fraction form
    362,402.40/543,085.20 = 251,464.80/x
  3. Step 3: Cross multiply
    362,402.40x = 543,085.20 × 251,464.80
  4. Step 4: Simplify right side
    362,402.40x = 136,566,811,200.96
  5. Step 5: Solve for x
    x = 136,566,811,200.96/362,402.40
  6. Step 6: Final answer
    x = 376,837.49

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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.