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Finding the Fourth Proportional to 348,479.51, 480,724.62 and 227,691.50

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Solution

The fourth proportional to 348,479.51, 480,724.62 and 227,691.50 is: 314,098.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,479.51 : 480,724.62 = 227,691.50 : x
  2. Step 2: Convert to fraction form
    348,479.51/480,724.62 = 227,691.50/x
  3. Step 3: Cross multiply
    348,479.51x = 480,724.62 × 227,691.50
  4. Step 4: Simplify right side
    348,479.51x = 109,456,909,814.73
  5. Step 5: Solve for x
    x = 109,456,909,814.73/348,479.51
  6. Step 6: Final answer
    x = 314,098.55

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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.