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Finding the Fourth Proportional to 655,011.36, 982,472.76 and 255,577.68

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Solution

The fourth proportional to 655,011.36, 982,472.76 and 255,577.68 is: 383,349.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,011.36 : 982,472.76 = 255,577.68 : x
  2. Step 2: Convert to fraction form
    655,011.36/982,472.76 = 255,577.68/x
  3. Step 3: Cross multiply
    655,011.36x = 982,472.76 × 255,577.68
  4. Step 4: Simplify right side
    655,011.36x = 251,098,108,664.00
  5. Step 5: Solve for x
    x = 251,098,108,664.00/655,011.36
  6. Step 6: Final answer
    x = 383,349.24

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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.