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Finding the Fourth Proportional to 439,524.16, 606,541.44 and 238,320.16

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Solution

The fourth proportional to 439,524.16, 606,541.44 and 238,320.16 is: 328,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,524.16 : 606,541.44 = 238,320.16 : x
  2. Step 2: Convert to fraction form
    439,524.16/606,541.44 = 238,320.16/x
  3. Step 3: Cross multiply
    439,524.16x = 606,541.44 × 238,320.16
  4. Step 4: Simplify right side
    439,524.16x = 144,551,053,027.43
  5. Step 5: Solve for x
    x = 144,551,053,027.43/439,524.16
  6. Step 6: Final answer
    x = 328,880.79

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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.