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Finding the Fourth Proportional to 290,301.96, 400,546.56 and 169,374.24

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Solution

The fourth proportional to 290,301.96, 400,546.56 and 169,374.24 is: 233,695.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,301.96 : 400,546.56 = 169,374.24 : x
  2. Step 2: Convert to fraction form
    290,301.96/400,546.56 = 169,374.24/x
  3. Step 3: Cross multiply
    290,301.96x = 400,546.56 × 169,374.24
  4. Step 4: Simplify right side
    290,301.96x = 67,842,269,184.61
  5. Step 5: Solve for x
    x = 67,842,269,184.61/290,301.96
  6. Step 6: Final answer
    x = 233,695.53

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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.