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Finding the Fourth Proportional to 328,382.72, 492,420.98 and 170,568.80

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Solution

The fourth proportional to 328,382.72, 492,420.98 and 170,568.80 is: 255,773.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,382.72 : 492,420.98 = 170,568.80 : x
  2. Step 2: Convert to fraction form
    328,382.72/492,420.98 = 170,568.80/x
  3. Step 3: Cross multiply
    328,382.72x = 492,420.98 × 170,568.80
  4. Step 4: Simplify right side
    328,382.72x = 83,991,652,338.48
  5. Step 5: Solve for x
    x = 83,991,652,338.48/328,382.72
  6. Step 6: Final answer
    x = 255,773.67

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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.