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Finding the Fourth Proportional to 619,958.14, 855,541.79 and 348,026.56

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Solution

The fourth proportional to 619,958.14, 855,541.79 and 348,026.56 is: 480,276.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,958.14 : 855,541.79 = 348,026.56 : x
  2. Step 2: Convert to fraction form
    619,958.14/855,541.79 = 348,026.56/x
  3. Step 3: Cross multiply
    619,958.14x = 855,541.79 × 348,026.56
  4. Step 4: Simplify right side
    619,958.14x = 297,751,266,109.94
  5. Step 5: Solve for x
    x = 297,751,266,109.94/619,958.14
  6. Step 6: Final answer
    x = 480,276.40

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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.