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Finding the Fourth Proportional to 492,795.40, 680,058.62 and 266,440.90

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Solution

The fourth proportional to 492,795.40, 680,058.62 and 266,440.90 is: 367,688.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,795.40 : 680,058.62 = 266,440.90 : x
  2. Step 2: Convert to fraction form
    492,795.40/680,058.62 = 266,440.90/x
  3. Step 3: Cross multiply
    492,795.40x = 680,058.62 × 266,440.90
  4. Step 4: Simplify right side
    492,795.40x = 181,195,430,765.56
  5. Step 5: Solve for x
    x = 181,195,430,765.56/492,795.40
  6. Step 6: Final answer
    x = 367,688.97

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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.