Home / 717,202.32-989,739.20-394,911.64

Finding the Fourth Proportional to 717,202.32, 989,739.20 and 394,911.64

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Solution

The fourth proportional to 717,202.32, 989,739.20 and 394,911.64 is: 544,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,202.32 : 989,739.20 = 394,911.64 : x
  2. Step 2: Convert to fraction form
    717,202.32/989,739.20 = 394,911.64/x
  3. Step 3: Cross multiply
    717,202.32x = 989,739.20 × 394,911.64
  4. Step 4: Simplify right side
    717,202.32x = 390,859,530,644.29
  5. Step 5: Solve for x
    x = 390,859,530,644.29/717,202.32
  6. Step 6: Final answer
    x = 544,978.06

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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.