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Finding the Fourth Proportional to 348,178.60, 480,309.62 and 227,390.59

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Solution

The fourth proportional to 348,178.60, 480,309.62 and 227,390.59 is: 313,683.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,178.60 : 480,309.62 = 227,390.59 : x
  2. Step 2: Convert to fraction form
    348,178.60/480,309.62 = 227,390.59/x
  3. Step 3: Cross multiply
    348,178.60x = 480,309.62 × 227,390.59
  4. Step 4: Simplify right side
    348,178.60x = 109,217,889,256.52
  5. Step 5: Solve for x
    x = 109,217,889,256.52/348,178.60
  6. Step 6: Final answer
    x = 313,683.52

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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.