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Finding the Fourth Proportional to 638,021.84, 957,219.60 and 188,754.62

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Solution

The fourth proportional to 638,021.84, 957,219.60 and 188,754.62 is: 283,187.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,021.84 : 957,219.60 = 188,754.62 : x
  2. Step 2: Convert to fraction form
    638,021.84/957,219.60 = 188,754.62/x
  3. Step 3: Cross multiply
    638,021.84x = 957,219.60 × 188,754.62
  4. Step 4: Simplify right side
    638,021.84x = 180,679,621,854.55
  5. Step 5: Solve for x
    x = 180,679,621,854.55/638,021.84
  6. Step 6: Final answer
    x = 283,187.21

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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.