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Finding the Fourth Proportional to 655,839,948.60, 983,932,391.28 and 235,703,754.72

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Solution

The fourth proportional to 655,839,948.60, 983,932,391.28 and 235,703,754.72 is: 353,617,615.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,839,948.60 : 983,932,391.28 = 235,703,754.72 : x
  2. Step 2: Convert to fraction form
    655,839,948.60/983,932,391.28 = 235,703,754.72/x
  3. Step 3: Cross multiply
    655,839,948.60x = 983,932,391.28 × 235,703,754.72
  4. Step 4: Simplify right side
    655,839,948.60x = 231,916,559,015,324,192
  5. Step 5: Solve for x
    x = 231,916,559,015,324,192/655,839,948.60
  6. Step 6: Final answer
    x = 353,617,615.87

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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.