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Finding the Fourth Proportional to 655,722, 982,926.36 and 255,812.58

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Solution

The fourth proportional to 655,722, 982,926.36 and 255,812.58 is: 383,462.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,722 : 982,926.36 = 255,812.58 : x
  2. Step 2: Convert to fraction form
    655,722/982,926.36 = 255,812.58/x
  3. Step 3: Cross multiply
    655,722x = 982,926.36 × 255,812.58
  4. Step 4: Simplify right side
    655,722x = 251,444,928,101.61
  5. Step 5: Solve for x
    x = 251,444,928,101.61/655,722
  6. Step 6: Final answer
    x = 383,462.70

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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.