Home / 644,183.39-889,103.58-372,262.70

Finding the Fourth Proportional to 644,183.39, 889,103.58 and 372,262.70

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Solution

The fourth proportional to 644,183.39, 889,103.58 and 372,262.70 is: 513,797.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,183.39 : 889,103.58 = 372,262.70 : x
  2. Step 2: Convert to fraction form
    644,183.39/889,103.58 = 372,262.70/x
  3. Step 3: Cross multiply
    644,183.39x = 889,103.58 × 372,262.70
  4. Step 4: Simplify right side
    644,183.39x = 330,980,099,270.47
  5. Step 5: Solve for x
    x = 330,980,099,270.47/644,183.39
  6. Step 6: Final answer
    x = 513,797.94

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1.5x scale

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.