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Finding the Fourth Proportional to 362,318.81, 543,192.36 and 228,917.88

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Solution

The fourth proportional to 362,318.81, 543,192.36 and 228,917.88 is: 343,196.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    362,318.81 : 543,192.36 = 228,917.88 : x
  2. Step 2: Convert to fraction form
    362,318.81/543,192.36 = 228,917.88/x
  3. Step 3: Cross multiply
    362,318.81x = 543,192.36 × 228,917.88
  4. Step 4: Simplify right side
    362,318.81x = 124,346,443,483.40
  5. Step 5: Solve for x
    x = 124,346,443,483.40/362,318.81
  6. Step 6: Final answer
    x = 343,196.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.