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Finding the Fourth Proportional to 439,183, 606,072.54 and 237,979

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Solution

The fourth proportional to 439,183, 606,072.54 and 237,979 is: 328,411.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,183 : 606,072.54 = 237,979 : x
  2. Step 2: Convert to fraction form
    439,183/606,072.54 = 237,979/x
  3. Step 3: Cross multiply
    439,183x = 606,072.54 × 237,979
  4. Step 4: Simplify right side
    439,183x = 144,232,536,996.66
  5. Step 5: Solve for x
    x = 144,232,536,996.66/439,183
  6. Step 6: Final answer
    x = 328,411.02

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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.