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Finding the Fourth Proportional to 465,957.90, 697,912.38 and 385,079.25

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Solution

The fourth proportional to 465,957.90, 697,912.38 and 385,079.25 is: 576,772.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,957.90 : 697,912.38 = 385,079.25 : x
  2. Step 2: Convert to fraction form
    465,957.90/697,912.38 = 385,079.25/x
  3. Step 3: Cross multiply
    465,957.90x = 697,912.38 × 385,079.25
  4. Step 4: Simplify right side
    465,957.90x = 268,751,575,856.12
  5. Step 5: Solve for x
    x = 268,751,575,856.12/465,957.90
  6. Step 6: Final answer
    x = 576,772.23

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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.