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Finding the Fourth Proportional to 540,637.56, 811,289.87 and 274,589.01

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Solution

The fourth proportional to 540,637.56, 811,289.87 and 274,589.01 is: 412,052.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,637.56 : 811,289.87 = 274,589.01 : x
  2. Step 2: Convert to fraction form
    540,637.56/811,289.87 = 274,589.01/x
  3. Step 3: Cross multiply
    540,637.56x = 811,289.87 × 274,589.01
  4. Step 4: Simplify right side
    540,637.56x = 222,771,280,853.38
  5. Step 5: Solve for x
    x = 222,771,280,853.38/540,637.56
  6. Step 6: Final answer
    x = 412,052.91

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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.