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Finding the Fourth Proportional to 451,908.16, 623,634 and 250,704.16

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Solution

The fourth proportional to 451,908.16, 623,634 and 250,704.16 is: 345,972.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,908.16 : 623,634 = 250,704.16 : x
  2. Step 2: Convert to fraction form
    451,908.16/623,634 = 250,704.16/x
  3. Step 3: Cross multiply
    451,908.16x = 623,634 × 250,704.16
  4. Step 4: Simplify right side
    451,908.16x = 156,347,638,117.44
  5. Step 5: Solve for x
    x = 156,347,638,117.44/451,908.16
  6. Step 6: Final answer
    x = 345,972.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.