Home / 619,827.17-930,238.91-320,395.49

Finding the Fourth Proportional to 619,827.17, 930,238.91 and 320,395.49

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Solution

The fourth proportional to 619,827.17, 930,238.91 and 320,395.49 is: 480,850.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,827.17 : 930,238.91 = 320,395.49 : x
  2. Step 2: Convert to fraction form
    619,827.17/930,238.91 = 320,395.49/x
  3. Step 3: Cross multiply
    619,827.17x = 930,238.91 × 320,395.49
  4. Step 4: Simplify right side
    619,827.17x = 298,044,349,784.54
  5. Step 5: Solve for x
    x = 298,044,349,784.54/619,827.17
  6. Step 6: Final answer
    x = 480,850.73

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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.