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Finding the Fourth Proportional to 865,754,336.76, 1,194,708,977.01 and 469,268,813.66

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Solution

The fourth proportional to 865,754,336.76, 1,194,708,977.01 and 469,268,813.66 is: 647,573,613.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,754,336.76 : 1,194,708,977.01 = 469,268,813.66 : x
  2. Step 2: Convert to fraction form
    865,754,336.76/1,194,708,977.01 = 469,268,813.66/x
  3. Step 3: Cross multiply
    865,754,336.76x = 1,194,708,977.01 × 469,268,813.66
  4. Step 4: Simplify right side
    865,754,336.76x = 560,639,664,310,434,944
  5. Step 5: Solve for x
    x = 560,639,664,310,434,944/865,754,336.76
  6. Step 6: Final answer
    x = 647,573,613.56

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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.