Home / 865,754,351.43-1,194,708,997.49-469,268,828.53

Finding the Fourth Proportional to 865,754,351.43, 1,194,708,997.49 and 469,268,828.53

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Solution

The fourth proportional to 865,754,351.43, 1,194,708,997.49 and 469,268,828.53 is: 647,573,634.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,754,351.43 : 1,194,708,997.49 = 469,268,828.53 : x
  2. Step 2: Convert to fraction form
    865,754,351.43/1,194,708,997.49 = 469,268,828.53/x
  3. Step 3: Cross multiply
    865,754,351.43x = 1,194,708,997.49 × 469,268,828.53
  4. Step 4: Simplify right side
    865,754,351.43x = 560,639,691,686,382,976
  5. Step 5: Solve for x
    x = 560,639,691,686,382,976/865,754,351.43
  6. Step 6: Final answer
    x = 647,573,634.21

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1.5x scale

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.