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Finding the Fourth Proportional to 439,767.66, 606,880.54 and 238,563.66

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Solution

The fourth proportional to 439,767.66, 606,880.54 and 238,563.66 is: 329,218.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,767.66 : 606,880.54 = 238,563.66 : x
  2. Step 2: Convert to fraction form
    439,767.66/606,880.54 = 238,563.66/x
  3. Step 3: Cross multiply
    439,767.66x = 606,880.54 × 238,563.66
  4. Step 4: Simplify right side
    439,767.66x = 144,779,642,805.18
  5. Step 5: Solve for x
    x = 144,779,642,805.18/439,767.66
  6. Step 6: Final answer
    x = 329,218.49

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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.