Home / 699,205.56-964,932.45-393,296.16

Finding the Fourth Proportional to 699,205.56, 964,932.45 and 393,296.16

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Solution

The fourth proportional to 699,205.56, 964,932.45 and 393,296.16 is: 542,764.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,205.56 : 964,932.45 = 393,296.16 : x
  2. Step 2: Convert to fraction form
    699,205.56/964,932.45 = 393,296.16/x
  3. Step 3: Cross multiply
    699,205.56x = 964,932.45 × 393,296.16
  4. Step 4: Simplify right side
    699,205.56x = 379,504,227,244.39
  5. Step 5: Solve for x
    x = 379,504,227,244.39/699,205.56
  6. Step 6: Final answer
    x = 542,764.89

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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.