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Finding the Fourth Proportional to 328,522.40, 492,092.40 and 273,226.40

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Solution

The fourth proportional to 328,522.40, 492,092.40 and 273,226.40 is: 409,264.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,522.40 : 492,092.40 = 273,226.40 : x
  2. Step 2: Convert to fraction form
    328,522.40/492,092.40 = 273,226.40/x
  3. Step 3: Cross multiply
    328,522.40x = 492,092.40 × 273,226.40
  4. Step 4: Simplify right side
    328,522.40x = 134,452,634,919.36
  5. Step 5: Solve for x
    x = 134,452,634,919.36/328,522.40
  6. Step 6: Final answer
    x = 409,264.74

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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.