Home / 644,106.06-888,849.45-357,618.78

Finding the Fourth Proportional to 644,106.06, 888,849.45 and 357,618.78

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Solution

The fourth proportional to 644,106.06, 888,849.45 and 357,618.78 is: 493,504.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,106.06 : 888,849.45 = 357,618.78 : x
  2. Step 2: Convert to fraction form
    644,106.06/888,849.45 = 357,618.78/x
  3. Step 3: Cross multiply
    644,106.06x = 888,849.45 × 357,618.78
  4. Step 4: Simplify right side
    644,106.06x = 317,869,255,912.67
  5. Step 5: Solve for x
    x = 317,869,255,912.67/644,106.06
  6. Step 6: Final answer
    x = 493,504.53

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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.