Home / 919,557.58-1,379,534.90-279,911.33

Finding the Fourth Proportional to 919,557.58, 1,379,534.90 and 279,911.33

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Solution

The fourth proportional to 919,557.58, 1,379,534.90 and 279,911.33 is: 419,927.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,557.58 : 1,379,534.90 = 279,911.33 : x
  2. Step 2: Convert to fraction form
    919,557.58/1,379,534.90 = 279,911.33/x
  3. Step 3: Cross multiply
    919,557.58x = 1,379,534.90 × 279,911.33
  4. Step 4: Simplify right side
    919,557.58x = 386,147,452,789.03
  5. Step 5: Solve for x
    x = 386,147,452,789.03/919,557.58
  6. Step 6: Final answer
    x = 419,927.43

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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.