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Finding the Fourth Proportional to 1,911,781,034.08, 2,867,978,003.88 and 806,548,689.92

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Solution

The fourth proportional to 1,911,781,034.08, 2,867,978,003.88 and 806,548,689.92 is: 1,209,952,322.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,781,034.08 : 2,867,978,003.88 = 806,548,689.92 : x
  2. Step 2: Convert to fraction form
    1,911,781,034.08/2,867,978,003.88 = 806,548,689.92/x
  3. Step 3: Cross multiply
    1,911,781,034.08x = 2,867,978,003.88 × 806,548,689.92
  4. Step 4: Simplify right side
    1,911,781,034.08x = 2,313,163,901,748,790,784
  5. Step 5: Solve for x
    x = 2,313,163,901,748,790,784/1,911,781,034.08
  6. Step 6: Final answer
    x = 1,209,952,322.21

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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.