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Finding the Fourth Proportional to 321,926.15, 444,256.99 and 176,728.32

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Solution

The fourth proportional to 321,926.15, 444,256.99 and 176,728.32 is: 243,884.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,926.15 : 444,256.99 = 176,728.32 : x
  2. Step 2: Convert to fraction form
    321,926.15/444,256.99 = 176,728.32/x
  3. Step 3: Cross multiply
    321,926.15x = 444,256.99 × 176,728.32
  4. Step 4: Simplify right side
    321,926.15x = 78,512,791,711.87
  5. Step 5: Solve for x
    x = 78,512,791,711.87/321,926.15
  6. Step 6: Final answer
    x = 243,884.48

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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.