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Finding the Fourth Proportional to 806,636,951.10, 1,209,955,426.65 and 798,984,200.70

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Solution

The fourth proportional to 806,636,951.10, 1,209,955,426.65 and 798,984,200.70 is: 1,198,476,301.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,636,951.10 : 1,209,955,426.65 = 798,984,200.70 : x
  2. Step 2: Convert to fraction form
    806,636,951.10/1,209,955,426.65 = 798,984,200.70/x
  3. Step 3: Cross multiply
    806,636,951.10x = 1,209,955,426.65 × 798,984,200.70
  4. Step 4: Simplify right side
    806,636,951.10x = 966,735,269,444,577,920
  5. Step 5: Solve for x
    x = 966,735,269,444,577,920/806,636,951.10
  6. Step 6: Final answer
    x = 1,198,476,301.05

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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.