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Finding the Fourth Proportional to 607,694.40, 911,541.60 and 603,757.80

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Solution

The fourth proportional to 607,694.40, 911,541.60 and 603,757.80 is: 905,636.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,694.40 : 911,541.60 = 603,757.80 : x
  2. Step 2: Convert to fraction form
    607,694.40/911,541.60 = 603,757.80/x
  3. Step 3: Cross multiply
    607,694.40x = 911,541.60 × 603,757.80
  4. Step 4: Simplify right side
    607,694.40x = 550,350,351,024.48
  5. Step 5: Solve for x
    x = 550,350,351,024.48/607,694.40
  6. Step 6: Final answer
    x = 905,636.70

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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.