Home / 728,499.72-1,092,665.52-195,978.89

Finding the Fourth Proportional to 728,499.72, 1,092,665.52 and 195,978.89

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Solution

The fourth proportional to 728,499.72, 1,092,665.52 and 195,978.89 is: 293,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,499.72 : 1,092,665.52 = 195,978.89 : x
  2. Step 2: Convert to fraction form
    728,499.72/1,092,665.52 = 195,978.89/x
  3. Step 3: Cross multiply
    728,499.72x = 1,092,665.52 × 195,978.89
  4. Step 4: Simplify right side
    728,499.72x = 214,139,379,033.73
  5. Step 5: Solve for x
    x = 214,139,379,033.73/728,499.72
  6. Step 6: Final answer
    x = 293,945.72

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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.