Home / 383,227.20-528,839.28-213,457.68

Finding the Fourth Proportional to 383,227.20, 528,839.28 and 213,457.68

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Solution

The fourth proportional to 383,227.20, 528,839.28 and 213,457.68 is: 294,563.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,227.20 : 528,839.28 = 213,457.68 : x
  2. Step 2: Convert to fraction form
    383,227.20/528,839.28 = 213,457.68/x
  3. Step 3: Cross multiply
    383,227.20x = 528,839.28 × 213,457.68
  4. Step 4: Simplify right side
    383,227.20x = 112,884,805,801.67
  5. Step 5: Solve for x
    x = 112,884,805,801.67/383,227.20
  6. Step 6: Final answer
    x = 294,563.66

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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.