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Finding the Fourth Proportional to 425,441.01, 587,259.03 and 380,040.11

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Solution

The fourth proportional to 425,441.01, 587,259.03 and 380,040.11 is: 524,589.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,441.01 : 587,259.03 = 380,040.11 : x
  2. Step 2: Convert to fraction form
    425,441.01/587,259.03 = 380,040.11/x
  3. Step 3: Cross multiply
    425,441.01x = 587,259.03 × 380,040.11
  4. Step 4: Simplify right side
    425,441.01x = 223,181,984,913.04
  5. Step 5: Solve for x
    x = 223,181,984,913.04/425,441.01
  6. Step 6: Final answer
    x = 524,589.73

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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.