Home / 639,812.37-882,933.93-353,326.71

Finding the Fourth Proportional to 639,812.37, 882,933.93 and 353,326.71

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Solution

The fourth proportional to 639,812.37, 882,933.93 and 353,326.71 is: 487,586.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,812.37 : 882,933.93 = 353,326.71 : x
  2. Step 2: Convert to fraction form
    639,812.37/882,933.93 = 353,326.71/x
  3. Step 3: Cross multiply
    639,812.37x = 882,933.93 × 353,326.71
  4. Step 4: Simplify right side
    639,812.37x = 311,964,140,634.27
  5. Step 5: Solve for x
    x = 311,964,140,634.27/639,812.37
  6. Step 6: Final answer
    x = 487,586.92

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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.