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Finding the Fourth Proportional to 570,803.24, 787,785.60 and 329,081.42

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Solution

The fourth proportional to 570,803.24, 787,785.60 and 329,081.42 is: 454,176.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,803.24 : 787,785.60 = 329,081.42 : x
  2. Step 2: Convert to fraction form
    570,803.24/787,785.60 = 329,081.42/x
  3. Step 3: Cross multiply
    570,803.24x = 787,785.60 × 329,081.42
  4. Step 4: Simplify right side
    570,803.24x = 259,245,599,964.62
  5. Step 5: Solve for x
    x = 259,245,599,964.62/570,803.24
  6. Step 6: Final answer
    x = 454,176.82

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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.