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Finding the Third Proportional to 404,824,238.63 and 621,967,700.25

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Solution

The third proportional to 404,824,238.63 and 621,967,700.25 is: 955,584,629.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,824,238.63 : 621,967,700.25 = 621,967,700.25 : x
  2. Step 2: Convert to fraction form
    404,824,238.63/621,967,700.25 = 621,967,700.25/x
  3. Step 3: Cross multiply
    404,824,238.63x = 621,967,700.25 × 621,967,700.25
  4. Step 4: Simplify right side
    404,824,238.63x = 386,843,820,154,273,856
  5. Step 5: Solve for x
    x = 386,843,820,154,273,856/404,824,238.63
  6. Step 6: Final answer
    x = 955,584,629.69

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.