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Finding the Fourth Proportional to 325,390.88, 448,807.93 and 298,619.84

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Solution

The fourth proportional to 325,390.88, 448,807.93 and 298,619.84 is: 411,882.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,390.88 : 448,807.93 = 298,619.84 : x
  2. Step 2: Convert to fraction form
    325,390.88/448,807.93 = 298,619.84/x
  3. Step 3: Cross multiply
    325,390.88x = 448,807.93 × 298,619.84
  4. Step 4: Simplify right side
    325,390.88x = 134,022,952,247.33
  5. Step 5: Solve for x
    x = 134,022,952,247.33/325,390.88
  6. Step 6: Final answer
    x = 411,882.94

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.