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Finding the Fourth Proportional to 439,767.16, 606,879.85 and 238,563.16

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Solution

The fourth proportional to 439,767.16, 606,879.85 and 238,563.16 is: 329,217.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,767.16 : 606,879.85 = 238,563.16 : x
  2. Step 2: Convert to fraction form
    439,767.16/606,879.85 = 238,563.16/x
  3. Step 3: Cross multiply
    439,767.16x = 606,879.85 × 238,563.16
  4. Step 4: Simplify right side
    439,767.16x = 144,779,174,756.33
  5. Step 5: Solve for x
    x = 144,779,174,756.33/439,767.16
  6. Step 6: Final answer
    x = 329,217.80

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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.