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Finding the Fourth Proportional to 498,279.51, 687,625.53 and 271,925.01

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Solution

The fourth proportional to 498,279.51, 687,625.53 and 271,925.01 is: 375,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,279.51 : 687,625.53 = 271,925.01 : x
  2. Step 2: Convert to fraction form
    498,279.51/687,625.53 = 271,925.01/x
  3. Step 3: Cross multiply
    498,279.51x = 687,625.53 × 271,925.01
  4. Step 4: Simplify right side
    498,279.51x = 186,982,579,121.51
  5. Step 5: Solve for x
    x = 186,982,579,121.51/498,279.51
  6. Step 6: Final answer
    x = 375,256.41

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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.