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Finding the Third Proportional to 254,894,062.78 and 393,601,009.22

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Solution

The third proportional to 254,894,062.78 and 393,601,009.22 is: 607,788,791.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,894,062.78 : 393,601,009.22 = 393,601,009.22 : x
  2. Step 2: Convert to fraction form
    254,894,062.78/393,601,009.22 = 393,601,009.22/x
  3. Step 3: Cross multiply
    254,894,062.78x = 393,601,009.22 × 393,601,009.22
  4. Step 4: Simplify right side
    254,894,062.78x = 154,921,754,458,018,528
  5. Step 5: Solve for x
    x = 154,921,754,458,018,528/254,894,062.78
  6. Step 6: Final answer
    x = 607,788,791.81

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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.