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Finding the Fourth Proportional to 540,147.11, 745,481.10 and 322,365.03

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Solution

The fourth proportional to 540,147.11, 745,481.10 and 322,365.03 is: 444,910.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,147.11 : 745,481.10 = 322,365.03 : x
  2. Step 2: Convert to fraction form
    540,147.11/745,481.10 = 322,365.03/x
  3. Step 3: Cross multiply
    540,147.11x = 745,481.10 × 322,365.03
  4. Step 4: Simplify right side
    540,147.11x = 240,317,037,165.93
  5. Step 5: Solve for x
    x = 240,317,037,165.93/540,147.11
  6. Step 6: Final answer
    x = 444,910.35

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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.