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Finding the Fourth Proportional to 885,873,629.80, 1,329,042,687.90 and 340,632,951.40

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Solution

The fourth proportional to 885,873,629.80, 1,329,042,687.90 and 340,632,951.40 is: 511,038,728.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,873,629.80 : 1,329,042,687.90 = 340,632,951.40 : x
  2. Step 2: Convert to fraction form
    885,873,629.80/1,329,042,687.90 = 340,632,951.40/x
  3. Step 3: Cross multiply
    885,873,629.80x = 1,329,042,687.90 × 340,632,951.40
  4. Step 4: Simplify right side
    885,873,629.80x = 452,715,733,315,966,080
  5. Step 5: Solve for x
    x = 452,715,733,315,966,080/885,873,629.80
  6. Step 6: Final answer
    x = 511,038,728.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.