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Finding the Fourth Proportional to 638,296.96, 957,410.88 and 195,064.96

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Solution

The fourth proportional to 638,296.96, 957,410.88 and 195,064.96 is: 292,586.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,296.96 : 957,410.88 = 195,064.96 : x
  2. Step 2: Convert to fraction form
    638,296.96/957,410.88 = 195,064.96/x
  3. Step 3: Cross multiply
    638,296.96x = 957,410.88 × 195,064.96
  4. Step 4: Simplify right side
    638,296.96x = 186,757,315,010.77
  5. Step 5: Solve for x
    x = 186,757,315,010.77/638,296.96
  6. Step 6: Final answer
    x = 292,586.88

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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.