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Finding the Fourth Proportional to 383,008.44, 528,631.78 and 230,053.32

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Solution

The fourth proportional to 383,008.44, 528,631.78 and 230,053.32 is: 317,521.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,008.44 : 528,631.78 = 230,053.32 : x
  2. Step 2: Convert to fraction form
    383,008.44/528,631.78 = 230,053.32/x
  3. Step 3: Cross multiply
    383,008.44x = 528,631.78 × 230,053.32
  4. Step 4: Simplify right side
    383,008.44x = 121,613,496,046.51
  5. Step 5: Solve for x
    x = 121,613,496,046.51/383,008.44
  6. Step 6: Final answer
    x = 317,521.71

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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.