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Finding the Fourth Proportional to 619,876.94, 855,322.07 and 347,956.29

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Solution

The fourth proportional to 619,876.94, 855,322.07 and 347,956.29 is: 480,119.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,876.94 : 855,322.07 = 347,956.29 : x
  2. Step 2: Convert to fraction form
    619,876.94/855,322.07 = 347,956.29/x
  3. Step 3: Cross multiply
    619,876.94x = 855,322.07 × 347,956.29
  4. Step 4: Simplify right side
    619,876.94x = 297,614,692,492.54
  5. Step 5: Solve for x
    x = 297,614,692,492.54/619,876.94
  6. Step 6: Final answer
    x = 480,119.00

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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.