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Finding the Fourth Proportional to 539,214.44, 744,203.16 and 321,449.83

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Solution

The fourth proportional to 539,214.44, 744,203.16 and 321,449.83 is: 443,652.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,214.44 : 744,203.16 = 321,449.83 : x
  2. Step 2: Convert to fraction form
    539,214.44/744,203.16 = 321,449.83/x
  3. Step 3: Cross multiply
    539,214.44x = 744,203.16 × 321,449.83
  4. Step 4: Simplify right side
    539,214.44x = 239,223,977,406.96
  5. Step 5: Solve for x
    x = 239,223,977,406.96/539,214.44
  6. Step 6: Final answer
    x = 443,652.77

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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.