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Finding the Fourth Proportional to 619,877.94, 855,323.44 and 347,957.29

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Solution

The fourth proportional to 619,877.94, 855,323.44 and 347,957.29 is: 480,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,877.94 : 855,323.44 = 347,957.29 : x
  2. Step 2: Convert to fraction form
    619,877.94/855,323.44 = 347,957.29/x
  3. Step 3: Cross multiply
    619,877.94x = 855,323.44 × 347,957.29
  4. Step 4: Simplify right side
    619,877.94x = 297,616,026,255.88
  5. Step 5: Solve for x
    x = 297,616,026,255.88/619,877.94
  6. Step 6: Final answer
    x = 480,120.37

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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.