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Finding the Fourth Proportional to 609,331.71, 913,400.99 and 254,447.22

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Solution

The fourth proportional to 609,331.71, 913,400.99 and 254,447.22 is: 381,421.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,331.71 : 913,400.99 = 254,447.22 : x
  2. Step 2: Convert to fraction form
    609,331.71/913,400.99 = 254,447.22/x
  3. Step 3: Cross multiply
    609,331.71x = 913,400.99 × 254,447.22
  4. Step 4: Simplify right side
    609,331.71x = 232,412,341,378.51
  5. Step 5: Solve for x
    x = 232,412,341,378.51/609,331.71
  6. Step 6: Final answer
    x = 381,421.71

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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.