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Finding the Fourth Proportional to 279,264.11, 415,938.41 and 277,903.31

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Solution

The fourth proportional to 279,264.11, 415,938.41 and 277,903.31 is: 413,911.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,264.11 : 415,938.41 = 277,903.31 : x
  2. Step 2: Convert to fraction form
    279,264.11/415,938.41 = 277,903.31/x
  3. Step 3: Cross multiply
    279,264.11x = 415,938.41 × 277,903.31
  4. Step 4: Simplify right side
    279,264.11x = 115,590,658,468.07
  5. Step 5: Solve for x
    x = 115,590,658,468.07/279,264.11
  6. Step 6: Final answer
    x = 413,911.62

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.