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Finding the Third Proportional to 256,668,172.88 and 554,251,804.88

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Solution

The third proportional to 256,668,172.88 and 554,251,804.88 is: 1,196,856,859.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,668,172.88 : 554,251,804.88 = 554,251,804.88 : x
  2. Step 2: Convert to fraction form
    256,668,172.88/554,251,804.88 = 554,251,804.88/x
  3. Step 3: Cross multiply
    256,668,172.88x = 554,251,804.88 × 554,251,804.88
  4. Step 4: Simplify right side
    256,668,172.88x = 307,195,063,207,195,072
  5. Step 5: Solve for x
    x = 307,195,063,207,195,072/256,668,172.88
  6. Step 6: Final answer
    x = 1,196,856,859.06

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.