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Finding the Fourth Proportional to 373,288.52, 515,045.78 and 228,056.92

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Solution

The fourth proportional to 373,288.52, 515,045.78 and 228,056.92 is: 314,662.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,288.52 : 515,045.78 = 228,056.92 : x
  2. Step 2: Convert to fraction form
    373,288.52/515,045.78 = 228,056.92/x
  3. Step 3: Cross multiply
    373,288.52x = 515,045.78 × 228,056.92
  4. Step 4: Simplify right side
    373,288.52x = 117,459,754,245.80
  5. Step 5: Solve for x
    x = 117,459,754,245.80/373,288.52
  6. Step 6: Final answer
    x = 314,662.11

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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.