Home / 641,703,717,655.30-885,572,367,733.20-352,682,221,553.92

Finding the Fourth Proportional to 641,703,717,655.30, 885,572,367,733.20 and 352,682,221,553.92

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Solution

The fourth proportional to 641,703,717,655.30, 885,572,367,733.20 and 352,682,221,553.92 is: 486,713,137,863.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    641,703,717,655.30 : 885,572,367,733.20 = 352,682,221,553.92 : x
  2. Step 2: Convert to fraction form
    641,703,717,655.30/885,572,367,733.20 = 352,682,221,553.92/x
  3. Step 3: Cross multiply
    641,703,717,655.30x = 885,572,367,733.20 × 352,682,221,553.92
  4. Step 4: Simplify right side
    641,703,717,655.30x = 312,325,629,998,909,926,408,192
  5. Step 5: Solve for x
    x = 312,325,629,998,909,926,408,192/641,703,717,655.30
  6. Step 6: Final answer
    x = 486,713,137,863.85

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Double scale
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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.