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Finding the Fourth Proportional to 670,636,223.78, 925,319,676.56 and 563,751,917.24

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Solution

The fourth proportional to 670,636,223.78, 925,319,676.56 and 563,751,917.24 is: 777,844,564.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,636,223.78 : 925,319,676.56 = 563,751,917.24 : x
  2. Step 2: Convert to fraction form
    670,636,223.78/925,319,676.56 = 563,751,917.24/x
  3. Step 3: Cross multiply
    670,636,223.78x = 925,319,676.56 × 563,751,917.24
  4. Step 4: Simplify right side
    670,636,223.78x = 521,650,741,713,151,296
  5. Step 5: Solve for x
    x = 521,650,741,713,151,296/670,636,223.78
  6. Step 6: Final answer
    x = 777,844,564.94

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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.