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Finding the Fourth Proportional to 451,651.30, 623,278.80 and 250,447.30

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Solution

The fourth proportional to 451,651.30, 623,278.80 and 250,447.30 is: 345,617.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,651.30 : 623,278.80 = 250,447.30 : x
  2. Step 2: Convert to fraction form
    451,651.30/623,278.80 = 250,447.30/x
  3. Step 3: Cross multiply
    451,651.30x = 623,278.80 × 250,447.30
  4. Step 4: Simplify right side
    451,651.30x = 156,098,492,607.24
  5. Step 5: Solve for x
    x = 156,098,492,607.24/451,651.30
  6. Step 6: Final answer
    x = 345,617.28

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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.