Home / 923,789.07-1,274,804.06-515,879.55

Finding the Fourth Proportional to 923,789.07, 1,274,804.06 and 515,879.55

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Solution

The fourth proportional to 923,789.07, 1,274,804.06 and 515,879.55 is: 711,899.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    923,789.07 : 1,274,804.06 = 515,879.55 : x
  2. Step 2: Convert to fraction form
    923,789.07/1,274,804.06 = 515,879.55/x
  3. Step 3: Cross multiply
    923,789.07x = 1,274,804.06 × 515,879.55
  4. Step 4: Simplify right side
    923,789.07x = 657,645,342,231.58
  5. Step 5: Solve for x
    x = 657,645,342,231.58/923,789.07
  6. Step 6: Final answer
    x = 711,899.90

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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.