Home / 407,113.32-561,788.46-225,818.04

Finding the Fourth Proportional to 407,113.32, 561,788.46 and 225,818.04

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Solution

The fourth proportional to 407,113.32, 561,788.46 and 225,818.04 is: 311,613.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,113.32 : 561,788.46 = 225,818.04 : x
  2. Step 2: Convert to fraction form
    407,113.32/561,788.46 = 225,818.04/x
  3. Step 3: Cross multiply
    407,113.32x = 561,788.46 × 225,818.04
  4. Step 4: Simplify right side
    407,113.32x = 126,861,968,931.82
  5. Step 5: Solve for x
    x = 126,861,968,931.82/407,113.32
  6. Step 6: Final answer
    x = 311,613.41

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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.