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Finding the Fourth Proportional to 325,601.40, 488,402.10 and 245,767.80

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Solution

The fourth proportional to 325,601.40, 488,402.10 and 245,767.80 is: 368,651.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,601.40 : 488,402.10 = 245,767.80 : x
  2. Step 2: Convert to fraction form
    325,601.40/488,402.10 = 245,767.80/x
  3. Step 3: Cross multiply
    325,601.40x = 488,402.10 × 245,767.80
  4. Step 4: Simplify right side
    325,601.40x = 120,033,509,632.38
  5. Step 5: Solve for x
    x = 120,033,509,632.38/325,601.40
  6. Step 6: Final answer
    x = 368,651.70

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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.