Home / 644,823.04-889,785.14-372,849.78

Finding the Fourth Proportional to 644,823.04, 889,785.14 and 372,849.78

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Solution

The fourth proportional to 644,823.04, 889,785.14 and 372,849.78 is: 514,491.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,823.04 : 889,785.14 = 372,849.78 : x
  2. Step 2: Convert to fraction form
    644,823.04/889,785.14 = 372,849.78/x
  3. Step 3: Cross multiply
    644,823.04x = 889,785.14 × 372,849.78
  4. Step 4: Simplify right side
    644,823.04x = 331,756,187,383.10
  5. Step 5: Solve for x
    x = 331,756,187,383.10/644,823.04
  6. Step 6: Final answer
    x = 514,491.83

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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.