Home / 639,539.28-882,571.36-353,059.52

Finding the Fourth Proportional to 639,539.28, 882,571.36 and 353,059.52

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Solution

The fourth proportional to 639,539.28, 882,571.36 and 353,059.52 is: 487,226.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,539.28 : 882,571.36 = 353,059.52 : x
  2. Step 2: Convert to fraction form
    639,539.28/882,571.36 = 353,059.52/x
  3. Step 3: Cross multiply
    639,539.28x = 882,571.36 × 353,059.52
  4. Step 4: Simplify right side
    639,539.28x = 311,600,220,727.35
  5. Step 5: Solve for x
    x = 311,600,220,727.35/639,539.28
  6. Step 6: Final answer
    x = 487,226.09

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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.