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Finding the Fourth Proportional to 624,644.88, 862,010.22 and 338,164.97

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Solution

The fourth proportional to 624,644.88, 862,010.22 and 338,164.97 is: 466,667.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,644.88 : 862,010.22 = 338,164.97 : x
  2. Step 2: Convert to fraction form
    624,644.88/862,010.22 = 338,164.97/x
  3. Step 3: Cross multiply
    624,644.88x = 862,010.22 × 338,164.97
  4. Step 4: Simplify right side
    624,644.88x = 291,501,655,875.94
  5. Step 5: Solve for x
    x = 291,501,655,875.94/624,644.88
  6. Step 6: Final answer
    x = 466,667.81

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1.5x scale

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.