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Finding the Fourth Proportional to 450,246.28, 621,355.24 and 256,682.62

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Solution

The fourth proportional to 450,246.28, 621,355.24 and 256,682.62 is: 354,230.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,246.28 : 621,355.24 = 256,682.62 : x
  2. Step 2: Convert to fraction form
    450,246.28/621,355.24 = 256,682.62/x
  3. Step 3: Cross multiply
    450,246.28x = 621,355.24 × 256,682.62
  4. Step 4: Simplify right side
    450,246.28x = 159,491,090,607.64
  5. Step 5: Solve for x
    x = 159,491,090,607.64/450,246.28
  6. Step 6: Final answer
    x = 354,230.78

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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.