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Finding the Fourth Proportional to 673,654.16, 929,640.84 and 371,846

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Solution

The fourth proportional to 673,654.16, 929,640.84 and 371,846 is: 513,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,654.16 : 929,640.84 = 371,846 : x
  2. Step 2: Convert to fraction form
    673,654.16/929,640.84 = 371,846/x
  3. Step 3: Cross multiply
    673,654.16x = 929,640.84 × 371,846
  4. Step 4: Simplify right side
    673,654.16x = 345,683,227,790.64
  5. Step 5: Solve for x
    x = 345,683,227,790.64/673,654.16
  6. Step 6: Final answer
    x = 513,146.43

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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.