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Finding the Fourth Proportional to 602,994.80, 905,010.60 and 266,553.20

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Solution

The fourth proportional to 602,994.80, 905,010.60 and 266,553.20 is: 400,058.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,994.80 : 905,010.60 = 266,553.20 : x
  2. Step 2: Convert to fraction form
    602,994.80/905,010.60 = 266,553.20/x
  3. Step 3: Cross multiply
    602,994.80x = 905,010.60 × 266,553.20
  4. Step 4: Simplify right side
    602,994.80x = 241,233,471,463.92
  5. Step 5: Solve for x
    x = 241,233,471,463.92/602,994.80
  6. Step 6: Final answer
    x = 400,058.96

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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.