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Finding the Fourth Proportional to 464,658,906.81, 641,204,950.80 and 255,774,250.29

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Solution

The fourth proportional to 464,658,906.81, 641,204,950.80 and 255,774,250.29 is: 352,955,066.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,658,906.81 : 641,204,950.80 = 255,774,250.29 : x
  2. Step 2: Convert to fraction form
    464,658,906.81/641,204,950.80 = 255,774,250.29/x
  3. Step 3: Cross multiply
    464,658,906.81x = 641,204,950.80 × 255,774,250.29
  4. Step 4: Simplify right side
    464,658,906.81x = 164,003,715,573,106,304
  5. Step 5: Solve for x
    x = 164,003,715,573,106,304/464,658,906.81
  6. Step 6: Final answer
    x = 352,955,066.97

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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.