Home / 655,836.35-905,118.71-383,887.76

Finding the Fourth Proportional to 655,836.35, 905,118.71 and 383,887.76

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Solution

The fourth proportional to 655,836.35, 905,118.71 and 383,887.76 is: 529,802.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,836.35 : 905,118.71 = 383,887.76 : x
  2. Step 2: Convert to fraction form
    655,836.35/905,118.71 = 383,887.76/x
  3. Step 3: Cross multiply
    655,836.35x = 905,118.71 × 383,887.76
  4. Step 4: Simplify right side
    655,836.35x = 347,463,987,670.96
  5. Step 5: Solve for x
    x = 347,463,987,670.96/655,836.35
  6. Step 6: Final answer
    x = 529,802.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.