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Finding the Fourth Proportional to 356,885.37, 492,456.42 and 203,933.48

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Solution

The fourth proportional to 356,885.37, 492,456.42 and 203,933.48 is: 281,402.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,885.37 : 492,456.42 = 203,933.48 : x
  2. Step 2: Convert to fraction form
    356,885.37/492,456.42 = 203,933.48/x
  3. Step 3: Cross multiply
    356,885.37x = 492,456.42 × 203,933.48
  4. Step 4: Simplify right side
    356,885.37x = 100,428,349,016.66
  5. Step 5: Solve for x
    x = 100,428,349,016.66/356,885.37
  6. Step 6: Final answer
    x = 281,402.26

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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.