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Finding the Fourth Proportional to 235,676.28, 325,235.34 and 217,817.40

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Solution

The fourth proportional to 235,676.28, 325,235.34 and 217,817.40 is: 300,589.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,676.28 : 325,235.34 = 217,817.40 : x
  2. Step 2: Convert to fraction form
    235,676.28/325,235.34 = 217,817.40/x
  3. Step 3: Cross multiply
    235,676.28x = 325,235.34 × 217,817.40
  4. Step 4: Simplify right side
    235,676.28x = 70,841,916,146.92
  5. Step 5: Solve for x
    x = 70,841,916,146.92/235,676.28
  6. Step 6: Final answer
    x = 300,589.93

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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.