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Finding the Fourth Proportional to 234,315.20, 351,472.80 and 171,646.40

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Solution

The fourth proportional to 234,315.20, 351,472.80 and 171,646.40 is: 257,469.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    234,315.20 : 351,472.80 = 171,646.40 : x
  2. Step 2: Convert to fraction form
    234,315.20/351,472.80 = 171,646.40/x
  3. Step 3: Cross multiply
    234,315.20x = 351,472.80 × 171,646.40
  4. Step 4: Simplify right side
    234,315.20x = 60,329,040,817.92
  5. Step 5: Solve for x
    x = 60,329,040,817.92/234,315.20
  6. Step 6: Final answer
    x = 257,469.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.