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Finding the Fourth Proportional to 330,998.70, 495,871.67 and 195,657.58

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Solution

The fourth proportional to 330,998.70, 495,871.67 and 195,657.58 is: 293,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,998.70 : 495,871.67 = 195,657.58 : x
  2. Step 2: Convert to fraction form
    330,998.70/495,871.67 = 195,657.58/x
  3. Step 3: Cross multiply
    330,998.70x = 495,871.67 × 195,657.58
  4. Step 4: Simplify right side
    330,998.70x = 97,021,049,262.46
  5. Step 5: Solve for x
    x = 97,021,049,262.46/330,998.70
  6. Step 6: Final answer
    x = 293,116.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.