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Finding the Fourth Proportional to 533,019.44, 799,612.24 and 319,737.21

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Solution

The fourth proportional to 533,019.44, 799,612.24 and 319,737.21 is: 479,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,019.44 : 799,612.24 = 319,737.21 : x
  2. Step 2: Convert to fraction form
    533,019.44/799,612.24 = 319,737.21/x
  3. Step 3: Cross multiply
    533,019.44x = 799,612.24 × 319,737.21
  4. Step 4: Simplify right side
    533,019.44x = 255,665,786,699.45
  5. Step 5: Solve for x
    x = 255,665,786,699.45/533,019.44
  6. Step 6: Final answer
    x = 479,655.65

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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.