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Finding the Fourth Proportional to 492,398.03, 738,675.79 and 208,091.34

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Solution

The fourth proportional to 492,398.03, 738,675.79 and 208,091.34 is: 312,170.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,398.03 : 738,675.79 = 208,091.34 : x
  2. Step 2: Convert to fraction form
    492,398.03/738,675.79 = 208,091.34/x
  3. Step 3: Cross multiply
    492,398.03x = 738,675.79 × 208,091.34
  4. Step 4: Simplify right side
    492,398.03x = 153,712,034,446.43
  5. Step 5: Solve for x
    x = 153,712,034,446.43/492,398.03
  6. Step 6: Final answer
    x = 312,170.29

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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.