Home / 420,010.11-629,818.13-153,584.30

Finding the Fourth Proportional to 420,010.11, 629,818.13 and 153,584.30

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Solution

The fourth proportional to 420,010.11, 629,818.13 and 153,584.30 is: 230,304.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,010.11 : 629,818.13 = 153,584.30 : x
  2. Step 2: Convert to fraction form
    420,010.11/629,818.13 = 153,584.30/x
  3. Step 3: Cross multiply
    420,010.11x = 629,818.13 × 153,584.30
  4. Step 4: Simplify right side
    420,010.11x = 96,730,178,581.87
  5. Step 5: Solve for x
    x = 96,730,178,581.87/420,010.11
  6. Step 6: Final answer
    x = 230,304.41

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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.