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Finding the Fourth Proportional to 619,957.14, 855,540.41 and 348,025.56

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Solution

The fourth proportional to 619,957.14, 855,540.41 and 348,025.56 is: 480,275.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,957.14 : 855,540.41 = 348,025.56 : x
  2. Step 2: Convert to fraction form
    619,957.14/855,540.41 = 348,025.56/x
  3. Step 3: Cross multiply
    619,957.14x = 855,540.41 × 348,025.56
  4. Step 4: Simplify right side
    619,957.14x = 297,749,926,015.18
  5. Step 5: Solve for x
    x = 297,749,926,015.18/619,957.14
  6. Step 6: Final answer
    x = 480,275.02

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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.