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Finding the Fourth Proportional to 328,225.73, 492,421.62 and 91,568.24

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Solution

The fourth proportional to 328,225.73, 492,421.62 and 91,568.24 is: 137,375.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,225.73 : 492,421.62 = 91,568.24 : x
  2. Step 2: Convert to fraction form
    328,225.73/492,421.62 = 91,568.24/x
  3. Step 3: Cross multiply
    328,225.73x = 492,421.62 × 91,568.24
  4. Step 4: Simplify right side
    328,225.73x = 45,090,178,619.24
  5. Step 5: Solve for x
    x = 45,090,178,619.24/328,225.73
  6. Step 6: Final answer
    x = 137,375.51

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1.5x scale

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.