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Finding the Fourth Proportional to 805,797,849.60, 1,208,696,774.40 and 560,909,836.80

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Solution

The fourth proportional to 805,797,849.60, 1,208,696,774.40 and 560,909,836.80 is: 841,364,755.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,797,849.60 : 1,208,696,774.40 = 560,909,836.80 : x
  2. Step 2: Convert to fraction form
    805,797,849.60/1,208,696,774.40 = 560,909,836.80/x
  3. Step 3: Cross multiply
    805,797,849.60x = 1,208,696,774.40 × 560,909,836.80
  4. Step 4: Simplify right side
    805,797,849.60x = 677,969,910,469,390,464
  5. Step 5: Solve for x
    x = 677,969,910,469,390,464/805,797,849.60
  6. Step 6: Final answer
    x = 841,364,755.20

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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.