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Finding the Fourth Proportional to 451,698.88, 623,344.80 and 250,496.32

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Solution

The fourth proportional to 451,698.88, 623,344.80 and 250,496.32 is: 345,685.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,698.88 : 623,344.80 = 250,496.32 : x
  2. Step 2: Convert to fraction form
    451,698.88/623,344.80 = 250,496.32/x
  3. Step 3: Cross multiply
    451,698.88x = 623,344.80 × 250,496.32
  4. Step 4: Simplify right side
    451,698.88x = 156,145,578,491.14
  5. Step 5: Solve for x
    x = 156,145,578,491.14/451,698.88
  6. Step 6: Final answer
    x = 345,685.11

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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.