Home / 413,568.20-620,352.30-133,085.45

Finding the Fourth Proportional to 413,568.20, 620,352.30 and 133,085.45

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Solution

The fourth proportional to 413,568.20, 620,352.30 and 133,085.45 is: 199,628.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    413,568.20 : 620,352.30 = 133,085.45 : x
  2. Step 2: Convert to fraction form
    413,568.20/620,352.30 = 133,085.45/x
  3. Step 3: Cross multiply
    413,568.20x = 620,352.30 × 133,085.45
  4. Step 4: Simplify right side
    413,568.20x = 82,559,865,004.04
  5. Step 5: Solve for x
    x = 82,559,865,004.04/413,568.20
  6. Step 6: Final answer
    x = 199,628.18

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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.