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Finding the Fourth Proportional to 405,170.91, 607,270.97 and 188,737.90

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Solution

The fourth proportional to 405,170.91, 607,270.97 and 188,737.90 is: 282,880.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,170.91 : 607,270.97 = 188,737.90 : x
  2. Step 2: Convert to fraction form
    405,170.91/607,270.97 = 188,737.90/x
  3. Step 3: Cross multiply
    405,170.91x = 607,270.97 × 188,737.90
  4. Step 4: Simplify right side
    405,170.91x = 114,615,046,562.43
  5. Step 5: Solve for x
    x = 114,615,046,562.43/405,170.91
  6. Step 6: Final answer
    x = 282,880.74

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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.