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Finding the Fourth Proportional to 313,874.72, 433,155.60 and 170,644.58

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Solution

The fourth proportional to 313,874.72, 433,155.60 and 170,644.58 is: 235,494.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,874.72 : 433,155.60 = 170,644.58 : x
  2. Step 2: Convert to fraction form
    313,874.72/433,155.60 = 170,644.58/x
  3. Step 3: Cross multiply
    313,874.72x = 433,155.60 × 170,644.58
  4. Step 4: Simplify right side
    313,874.72x = 73,915,655,436.65
  5. Step 5: Solve for x
    x = 73,915,655,436.65/313,874.72
  6. Step 6: Final answer
    x = 235,494.13

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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.