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Finding the Fourth Proportional to 620,226.39, 930,171.57 and 170,840.38

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Solution

The fourth proportional to 620,226.39, 930,171.57 and 170,840.38 is: 256,214.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,226.39 : 930,171.57 = 170,840.38 : x
  2. Step 2: Convert to fraction form
    620,226.39/930,171.57 = 170,840.38/x
  3. Step 3: Cross multiply
    620,226.39x = 930,171.57 × 170,840.38
  4. Step 4: Simplify right side
    620,226.39x = 158,910,865,006.06
  5. Step 5: Solve for x
    x = 158,910,865,006.06/620,226.39
  6. Step 6: Final answer
    x = 256,214.29

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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.