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Finding the Fourth Proportional to 407,190.60, 561,926.42 and 225,914.42

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Solution

The fourth proportional to 407,190.60, 561,926.42 and 225,914.42 is: 311,763.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,190.60 : 561,926.42 = 225,914.42 : x
  2. Step 2: Convert to fraction form
    407,190.60/561,926.42 = 225,914.42/x
  3. Step 3: Cross multiply
    407,190.60x = 561,926.42 × 225,914.42
  4. Step 4: Simplify right side
    407,190.60x = 126,947,277,317.77
  5. Step 5: Solve for x
    x = 126,947,277,317.77/407,190.60
  6. Step 6: Final answer
    x = 311,763.77

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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.