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Finding the Fourth Proportional to 638,232.52, 957,358.72 and 188,998.84

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Solution

The fourth proportional to 638,232.52, 957,358.72 and 188,998.84 is: 283,501.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,232.52 : 957,358.72 = 188,998.84 : x
  2. Step 2: Convert to fraction form
    638,232.52/957,358.72 = 188,998.84/x
  3. Step 3: Cross multiply
    638,232.52x = 957,358.72 × 188,998.84
  4. Step 4: Simplify right side
    638,232.52x = 180,939,687,543.89
  5. Step 5: Solve for x
    x = 180,939,687,543.89/638,232.52
  6. Step 6: Final answer
    x = 283,501.20

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Double scale
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Similar ratio
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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.