Home / 561,619.77-774,927.77-319,897.05

Finding the Fourth Proportional to 561,619.77, 774,927.77 and 319,897.05

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Solution

The fourth proportional to 561,619.77, 774,927.77 and 319,897.05 is: 441,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    561,619.77 : 774,927.77 = 319,897.05 : x
  2. Step 2: Convert to fraction form
    561,619.77/774,927.77 = 319,897.05/x
  3. Step 3: Cross multiply
    561,619.77x = 774,927.77 × 319,897.05
  4. Step 4: Simplify right side
    561,619.77x = 247,897,107,586.08
  5. Step 5: Solve for x
    x = 247,897,107,586.08/561,619.77
  6. Step 6: Final answer
    x = 441,396.69

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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.