Home / 644,105.06-888,848.07-357,617.78

Finding the Fourth Proportional to 644,105.06, 888,848.07 and 357,617.78

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Solution

The fourth proportional to 644,105.06, 888,848.07 and 357,617.78 is: 493,503.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,105.06 : 888,848.07 = 357,617.78 : x
  2. Step 2: Convert to fraction form
    644,105.06/888,848.07 = 357,617.78/x
  3. Step 3: Cross multiply
    644,105.06x = 888,848.07 × 357,617.78
  4. Step 4: Simplify right side
    644,105.06x = 317,867,873,550.69
  5. Step 5: Solve for x
    x = 317,867,873,550.69/644,105.06
  6. Step 6: Final answer
    x = 493,503.15

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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.