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Finding the Fourth Proportional to 266,221.20, 399,331.80 and 244,448.40

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Solution

The fourth proportional to 266,221.20, 399,331.80 and 244,448.40 is: 366,672.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,221.20 : 399,331.80 = 244,448.40 : x
  2. Step 2: Convert to fraction form
    266,221.20/399,331.80 = 244,448.40/x
  3. Step 3: Cross multiply
    266,221.20x = 399,331.80 × 244,448.40
  4. Step 4: Simplify right side
    266,221.20x = 97,616,019,579.12
  5. Step 5: Solve for x
    x = 97,616,019,579.12/266,221.20
  6. Step 6: Final answer
    x = 366,672.60

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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.