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Finding the Fourth Proportional to 400,561.89, 600,427.54 and 250,457.61

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Solution

The fourth proportional to 400,561.89, 600,427.54 and 250,457.61 is: 375,426.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,561.89 : 600,427.54 = 250,457.61 : x
  2. Step 2: Convert to fraction form
    400,561.89/600,427.54 = 250,457.61/x
  3. Step 3: Cross multiply
    400,561.89x = 600,427.54 × 250,457.61
  4. Step 4: Simplify right side
    400,561.89x = 150,381,646,646.58
  5. Step 5: Solve for x
    x = 150,381,646,646.58/400,561.89
  6. Step 6: Final answer
    x = 375,426.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.