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Finding the Fourth Proportional to 295,906.18, 407,870.72 and 231,261.26

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Solution

The fourth proportional to 295,906.18, 407,870.72 and 231,261.26 is: 318,765.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,906.18 : 407,870.72 = 231,261.26 : x
  2. Step 2: Convert to fraction form
    295,906.18/407,870.72 = 231,261.26/x
  3. Step 3: Cross multiply
    295,906.18x = 407,870.72 × 231,261.26
  4. Step 4: Simplify right side
    295,906.18x = 94,324,696,624.31
  5. Step 5: Solve for x
    x = 94,324,696,624.31/295,906.18
  6. Step 6: Final answer
    x = 318,765.55

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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.