Home / 377,304.09-520,664.58-205,222.20

Finding the Fourth Proportional to 377,304.09, 520,664.58 and 205,222.20

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Solution

The fourth proportional to 377,304.09, 520,664.58 and 205,222.20 is: 283,198.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,304.09 : 520,664.58 = 205,222.20 : x
  2. Step 2: Convert to fraction form
    377,304.09/520,664.58 = 205,222.20/x
  3. Step 3: Cross multiply
    377,304.09x = 520,664.58 × 205,222.20
  4. Step 4: Simplify right side
    377,304.09x = 106,851,930,569.68
  5. Step 5: Solve for x
    x = 106,851,930,569.68/377,304.09
  6. Step 6: Final answer
    x = 283,198.44

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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.