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Finding the Fourth Proportional to 482,828.40, 724,415.40 and 202,431.60

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Solution

The fourth proportional to 482,828.40, 724,415.40 and 202,431.60 is: 303,719.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,828.40 : 724,415.40 = 202,431.60 : x
  2. Step 2: Convert to fraction form
    482,828.40/724,415.40 = 202,431.60/x
  3. Step 3: Cross multiply
    482,828.40x = 724,415.40 × 202,431.60
  4. Step 4: Simplify right side
    482,828.40x = 146,644,568,486.64
  5. Step 5: Solve for x
    x = 146,644,568,486.64/482,828.40
  6. Step 6: Final answer
    x = 303,719.85

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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.