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Finding the Fourth Proportional to 607,003.40, 911,541.90 and 397,569.80

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Solution

The fourth proportional to 607,003.40, 911,541.90 and 397,569.80 is: 597,033.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,003.40 : 911,541.90 = 397,569.80 : x
  2. Step 2: Convert to fraction form
    607,003.40/911,541.90 = 397,569.80/x
  3. Step 3: Cross multiply
    607,003.40x = 911,541.90 × 397,569.80
  4. Step 4: Simplify right side
    607,003.40x = 362,401,530,874.62
  5. Step 5: Solve for x
    x = 362,401,530,874.62/607,003.40
  6. Step 6: Final answer
    x = 597,033.77

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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.