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Finding the Fourth Proportional to 533,327.06, 800,285.79 and 319,569.86

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Solution

The fourth proportional to 533,327.06, 800,285.79 and 319,569.86 is: 479,531.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,327.06 : 800,285.79 = 319,569.86 : x
  2. Step 2: Convert to fraction form
    533,327.06/800,285.79 = 319,569.86/x
  3. Step 3: Cross multiply
    533,327.06x = 800,285.79 × 319,569.86
  4. Step 4: Simplify right side
    533,327.06x = 255,747,217,870.29
  5. Step 5: Solve for x
    x = 255,747,217,870.29/533,327.06
  6. Step 6: Final answer
    x = 479,531.67

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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.