Home / 672,619,408,789.76-928,217,243,182.56-363,970,769,379.20

Finding the Fourth Proportional to 672,619,408,789.76, 928,217,243,182.56 and 363,970,769,379.20

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Solution

The fourth proportional to 672,619,408,789.76, 928,217,243,182.56 and 363,970,769,379.20 is: 502,280,992,396.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,619,408,789.76 : 928,217,243,182.56 = 363,970,769,379.20 : x
  2. Step 2: Convert to fraction form
    672,619,408,789.76/928,217,243,182.56 = 363,970,769,379.20/x
  3. Step 3: Cross multiply
    672,619,408,789.76x = 928,217,243,182.56 × 363,970,769,379.20
  4. Step 4: Simplify right side
    672,619,408,789.76x = 337,843,944,152,196,412,604,416
  5. Step 5: Solve for x
    x = 337,843,944,152,196,412,604,416/672,619,408,789.76
  6. Step 6: Final answer
    x = 502,280,992,396.69

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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.