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Finding the Fourth Proportional to 492,794.82, 680,057.87 and 266,440.32

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Solution

The fourth proportional to 492,794.82, 680,057.87 and 266,440.32 is: 367,688.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,794.82 : 680,057.87 = 266,440.32 : x
  2. Step 2: Convert to fraction form
    492,794.82/680,057.87 = 266,440.32/x
  3. Step 3: Cross multiply
    492,794.82x = 680,057.87 × 266,440.32
  4. Step 4: Simplify right side
    492,794.82x = 181,194,835,169.12
  5. Step 5: Solve for x
    x = 181,194,835,169.12/492,794.82
  6. Step 6: Final answer
    x = 367,688.19

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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.