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Finding the Fourth Proportional to 1,911,781,032.08, 2,867,978,000.88 and 806,548,687.92

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Solution

The fourth proportional to 1,911,781,032.08, 2,867,978,000.88 and 806,548,687.92 is: 1,209,952,319.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,781,032.08 : 2,867,978,000.88 = 806,548,687.92 : x
  2. Step 2: Convert to fraction form
    1,911,781,032.08/2,867,978,000.88 = 806,548,687.92/x
  3. Step 3: Cross multiply
    1,911,781,032.08x = 2,867,978,000.88 × 806,548,687.92
  4. Step 4: Simplify right side
    1,911,781,032.08x = 2,313,163,893,593,188,352
  5. Step 5: Solve for x
    x = 2,313,163,893,593,188,352/1,911,781,032.08
  6. Step 6: Final answer
    x = 1,209,952,319.21

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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.