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Finding the Fourth Proportional to 343,660.51, 515,867.86 and 273,037.11

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Solution

The fourth proportional to 343,660.51, 515,867.86 and 273,037.11 is: 409,855.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,660.51 : 515,867.86 = 273,037.11 : x
  2. Step 2: Convert to fraction form
    343,660.51/515,867.86 = 273,037.11/x
  3. Step 3: Cross multiply
    343,660.51x = 515,867.86 × 273,037.11
  4. Step 4: Simplify right side
    343,660.51x = 140,851,071,712.75
  5. Step 5: Solve for x
    x = 140,851,071,712.75/343,660.51
  6. Step 6: Final answer
    x = 409,855.28

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.