Home / 639,464.33-882,251.20-455,731.84

Finding the Fourth Proportional to 639,464.33, 882,251.20 and 455,731.84

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Solution

The fourth proportional to 639,464.33, 882,251.20 and 455,731.84 is: 628,760.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,464.33 : 882,251.20 = 455,731.84 : x
  2. Step 2: Convert to fraction form
    639,464.33/882,251.20 = 455,731.84/x
  3. Step 3: Cross multiply
    639,464.33x = 882,251.20 × 455,731.84
  4. Step 4: Simplify right side
    639,464.33x = 402,069,962,718.21
  5. Step 5: Solve for x
    x = 402,069,962,718.21/639,464.33
  6. Step 6: Final answer
    x = 628,760.58

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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.