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Finding the Fourth Proportional to 451,635.49, 623,284.95 and 250,431.49

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Solution

The fourth proportional to 451,635.49, 623,284.95 and 250,431.49 is: 345,610.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,635.49 : 623,284.95 = 250,431.49 : x
  2. Step 2: Convert to fraction form
    451,635.49/623,284.95 = 250,431.49/x
  3. Step 3: Cross multiply
    451,635.49x = 623,284.95 × 250,431.49
  4. Step 4: Simplify right side
    451,635.49x = 156,090,178,723.08
  5. Step 5: Solve for x
    x = 156,090,178,723.08/451,635.49
  6. Step 6: Final answer
    x = 345,610.97

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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.