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Finding the Fourth Proportional to 550,424.16, 759,610.92 and 343,814.90

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Solution

The fourth proportional to 550,424.16, 759,610.92 and 343,814.90 is: 474,480.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,424.16 : 759,610.92 = 343,814.90 : x
  2. Step 2: Convert to fraction form
    550,424.16/759,610.92 = 343,814.90/x
  3. Step 3: Cross multiply
    550,424.16x = 759,610.92 × 343,814.90
  4. Step 4: Simplify right side
    550,424.16x = 261,165,550,330.10
  5. Step 5: Solve for x
    x = 261,165,550,330.10/550,424.16
  6. Step 6: Final answer
    x = 474,480.54

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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.