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Finding the Fourth Proportional to 491,261.20, 736,891.80 and 366,845.20

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Solution

The fourth proportional to 491,261.20, 736,891.80 and 366,845.20 is: 550,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,261.20 : 736,891.80 = 366,845.20 : x
  2. Step 2: Convert to fraction form
    491,261.20/736,891.80 = 366,845.20/x
  3. Step 3: Cross multiply
    491,261.20x = 736,891.80 × 366,845.20
  4. Step 4: Simplify right side
    491,261.20x = 270,325,219,749.36
  5. Step 5: Solve for x
    x = 270,325,219,749.36/491,261.20
  6. Step 6: Final answer
    x = 550,267.80

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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.