Home / 579,872.88-869,459.73-259,966.89

Finding the Fourth Proportional to 579,872.88, 869,459.73 and 259,966.89

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Solution

The fourth proportional to 579,872.88, 869,459.73 and 259,966.89 is: 389,793.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,872.88 : 869,459.73 = 259,966.89 : x
  2. Step 2: Convert to fraction form
    579,872.88/869,459.73 = 259,966.89/x
  3. Step 3: Cross multiply
    579,872.88x = 869,459.73 × 259,966.89
  4. Step 4: Simplify right side
    579,872.88x = 226,030,744,161.99
  5. Step 5: Solve for x
    x = 226,030,744,161.99/579,872.88
  6. Step 6: Final answer
    x = 389,793.61

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1.5x scale

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.