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Finding the Fourth Proportional to 492,496.05, 679,644.54 and 266,141.55

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Solution

The fourth proportional to 492,496.05, 679,644.54 and 266,141.55 is: 367,275.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,496.05 : 679,644.54 = 266,141.55 : x
  2. Step 2: Convert to fraction form
    492,496.05/679,644.54 = 266,141.55/x
  3. Step 3: Cross multiply
    492,496.05x = 679,644.54 × 266,141.55
  4. Step 4: Simplify right side
    492,496.05x = 180,881,651,324.64
  5. Step 5: Solve for x
    x = 180,881,651,324.64/492,496.05
  6. Step 6: Final answer
    x = 367,275.33

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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.