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Finding the Fourth Proportional to 348,245.48, 480,680.81 and 227,405.53

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Solution

The fourth proportional to 348,245.48, 480,680.81 and 227,405.53 is: 313,886.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,245.48 : 480,680.81 = 227,405.53 : x
  2. Step 2: Convert to fraction form
    348,245.48/480,680.81 = 227,405.53/x
  3. Step 3: Cross multiply
    348,245.48x = 480,680.81 × 227,405.53
  4. Step 4: Simplify right side
    348,245.48x = 109,309,471,332.07
  5. Step 5: Solve for x
    x = 109,309,471,332.07/348,245.48
  6. Step 6: Final answer
    x = 313,886.26

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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.