Home / 639,819,576.30-882,954,280.34-357,566,727.96

Finding the Fourth Proportional to 639,819,576.30, 882,954,280.34 and 357,566,727.96

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Solution

The fourth proportional to 639,819,576.30, 882,954,280.34 and 357,566,727.96 is: 493,443,909.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,819,576.30 : 882,954,280.34 = 357,566,727.96 : x
  2. Step 2: Convert to fraction form
    639,819,576.30/882,954,280.34 = 357,566,727.96/x
  3. Step 3: Cross multiply
    639,819,576.30x = 882,954,280.34 × 357,566,727.96
  4. Step 4: Simplify right side
    639,819,576.30x = 315,715,072,959,003,392
  5. Step 5: Solve for x
    x = 315,715,072,959,003,392/639,819,576.30
  6. Step 6: Final answer
    x = 493,443,909.27

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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.