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Finding the Fourth Proportional to 488,016, 673,461.92 and 273,156

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Solution

The fourth proportional to 488,016, 673,461.92 and 273,156 is: 376,955.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,016 : 673,461.92 = 273,156 : x
  2. Step 2: Convert to fraction form
    488,016/673,461.92 = 273,156/x
  3. Step 3: Cross multiply
    488,016x = 673,461.92 × 273,156
  4. Step 4: Simplify right side
    488,016x = 183,960,164,219.52
  5. Step 5: Solve for x
    x = 183,960,164,219.52/488,016
  6. Step 6: Final answer
    x = 376,955.19

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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.