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Finding the Fourth Proportional to 374,548.10, 563,040.09 and 300,478.55

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Solution

The fourth proportional to 374,548.10, 563,040.09 and 300,478.55 is: 451,694.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,548.10 : 563,040.09 = 300,478.55 : x
  2. Step 2: Convert to fraction form
    374,548.10/563,040.09 = 300,478.55/x
  3. Step 3: Cross multiply
    374,548.10x = 563,040.09 × 300,478.55
  4. Step 4: Simplify right side
    374,548.10x = 169,181,467,019.87
  5. Step 5: Solve for x
    x = 169,181,467,019.87/374,548.10
  6. Step 6: Final answer
    x = 451,694.91

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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.