Home / 638,923.60-881,997.96-412,679.44

Finding the Fourth Proportional to 638,923.60, 881,997.96 and 412,679.44

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Solution

The fourth proportional to 638,923.60, 881,997.96 and 412,679.44 is: 569,680.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,923.60 : 881,997.96 = 412,679.44 : x
  2. Step 2: Convert to fraction form
    638,923.60/881,997.96 = 412,679.44/x
  3. Step 3: Cross multiply
    638,923.60x = 881,997.96 × 412,679.44
  4. Step 4: Simplify right side
    638,923.60x = 363,982,424,213.94
  5. Step 5: Solve for x
    x = 363,982,424,213.94/638,923.60
  6. Step 6: Final answer
    x = 569,680.67

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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.