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Finding the Fourth Proportional to 635,561,114.72, 877,084,782.39 and 349,464,645.54

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Solution

The fourth proportional to 635,561,114.72, 877,084,782.39 and 349,464,645.54 is: 482,266,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,561,114.72 : 877,084,782.39 = 349,464,645.54 : x
  2. Step 2: Convert to fraction form
    635,561,114.72/877,084,782.39 = 349,464,645.54/x
  3. Step 3: Cross multiply
    635,561,114.72x = 877,084,782.39 × 349,464,645.54
  4. Step 4: Simplify right side
    635,561,114.72x = 306,510,122,586,449,408
  5. Step 5: Solve for x
    x = 306,510,122,586,449,408/635,561,114.72
  6. Step 6: Final answer
    x = 482,266,953.55

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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.