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Finding the Fourth Proportional to 424,352.06, 585,621.25 and 243,099.03

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Solution

The fourth proportional to 424,352.06, 585,621.25 and 243,099.03 is: 335,485.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,352.06 : 585,621.25 = 243,099.03 : x
  2. Step 2: Convert to fraction form
    424,352.06/585,621.25 = 243,099.03/x
  3. Step 3: Cross multiply
    424,352.06x = 585,621.25 × 243,099.03
  4. Step 4: Simplify right side
    424,352.06x = 142,363,957,822.39
  5. Step 5: Solve for x
    x = 142,363,957,822.39/424,352.06
  6. Step 6: Final answer
    x = 335,485.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.