Home / 628,111,360.62-865,197,383.05-479,173,910.01

Finding the Fourth Proportional to 628,111,360.62, 865,197,383.05 and 479,173,910.01

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Solution

The fourth proportional to 628,111,360.62, 865,197,383.05 and 479,173,910.01 is: 660,042,213.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,111,360.62 : 865,197,383.05 = 479,173,910.01 : x
  2. Step 2: Convert to fraction form
    628,111,360.62/865,197,383.05 = 479,173,910.01/x
  3. Step 3: Cross multiply
    628,111,360.62x = 865,197,383.05 × 479,173,910.01
  4. Step 4: Simplify right side
    628,111,360.62x = 414,580,012,964,940,800
  5. Step 5: Solve for x
    x = 414,580,012,964,940,800/628,111,360.62
  6. Step 6: Final answer
    x = 660,042,213.78

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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.