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Finding the Fourth Proportional to 541,363.32, 812,040.50 and 423,134.04

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Solution

The fourth proportional to 541,363.32, 812,040.50 and 423,134.04 is: 634,697.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,363.32 : 812,040.50 = 423,134.04 : x
  2. Step 2: Convert to fraction form
    541,363.32/812,040.50 = 423,134.04/x
  3. Step 3: Cross multiply
    541,363.32x = 812,040.50 × 423,134.04
  4. Step 4: Simplify right side
    541,363.32x = 343,601,977,408.62
  5. Step 5: Solve for x
    x = 343,601,977,408.62/541,363.32
  6. Step 6: Final answer
    x = 634,697.56

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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.