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Finding the Fourth Proportional to 492,637.37, 679,839.75 and 266,282.87

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Solution

The fourth proportional to 492,637.37, 679,839.75 and 266,282.87 is: 367,470.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,637.37 : 679,839.75 = 266,282.87 : x
  2. Step 2: Convert to fraction form
    492,637.37/679,839.75 = 266,282.87/x
  3. Step 3: Cross multiply
    492,637.37x = 679,839.75 × 266,282.87
  4. Step 4: Simplify right side
    492,637.37x = 181,029,679,770.08
  5. Step 5: Solve for x
    x = 181,029,679,770.08/492,637.37
  6. Step 6: Final answer
    x = 367,470.46

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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.