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Finding the Fourth Proportional to 290,336.60, 400,654.14 and 163,017.56

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Solution

The fourth proportional to 290,336.60, 400,654.14 and 163,017.56 is: 224,958.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,336.60 : 400,654.14 = 163,017.56 : x
  2. Step 2: Convert to fraction form
    290,336.60/400,654.14 = 163,017.56/x
  3. Step 3: Cross multiply
    290,336.60x = 400,654.14 × 163,017.56
  4. Step 4: Simplify right side
    290,336.60x = 65,313,660,306.70
  5. Step 5: Solve for x
    x = 65,313,660,306.70/290,336.60
  6. Step 6: Final answer
    x = 224,958.41

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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.