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Finding the Fourth Proportional to 448,940.64, 619,521.84 and 247,732.32

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Solution

The fourth proportional to 448,940.64, 619,521.84 and 247,732.32 is: 341,861.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,940.64 : 619,521.84 = 247,732.32 : x
  2. Step 2: Convert to fraction form
    448,940.64/619,521.84 = 247,732.32/x
  3. Step 3: Cross multiply
    448,940.64x = 619,521.84 × 247,732.32
  4. Step 4: Simplify right side
    448,940.64x = 153,475,582,713.87
  5. Step 5: Solve for x
    x = 153,475,582,713.87/448,940.64
  6. Step 6: Final answer
    x = 341,861.64

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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.