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Finding the Fourth Proportional to 354,865, 489,714.02 and 195,889

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Solution

The fourth proportional to 354,865, 489,714.02 and 195,889 is: 270,327.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,865 : 489,714.02 = 195,889 : x
  2. Step 2: Convert to fraction form
    354,865/489,714.02 = 195,889/x
  3. Step 3: Cross multiply
    354,865x = 489,714.02 × 195,889
  4. Step 4: Simplify right side
    354,865x = 95,929,589,663.78
  5. Step 5: Solve for x
    x = 95,929,589,663.78/354,865
  6. Step 6: Final answer
    x = 270,327.00

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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.