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Finding the Fourth Proportional to 643,793,363.40, 965,690,045.10 and 234,862,854.60

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Solution

The fourth proportional to 643,793,363.40, 965,690,045.10 and 234,862,854.60 is: 352,294,281.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,793,363.40 : 965,690,045.10 = 234,862,854.60 : x
  2. Step 2: Convert to fraction form
    643,793,363.40/965,690,045.10 = 234,862,854.60/x
  3. Step 3: Cross multiply
    643,793,363.40x = 965,690,045.10 × 234,862,854.60
  4. Step 4: Simplify right side
    643,793,363.40x = 226,804,720,650,988,736
  5. Step 5: Solve for x
    x = 226,804,720,650,988,736/643,793,363.40
  6. Step 6: Final answer
    x = 352,294,281.90

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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.