Home / 419,965.40-629,948.10-153,637.40

Finding the Fourth Proportional to 419,965.40, 629,948.10 and 153,637.40

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Solution

The fourth proportional to 419,965.40, 629,948.10 and 153,637.40 is: 230,456.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,965.40 : 629,948.10 = 153,637.40 : x
  2. Step 2: Convert to fraction form
    419,965.40/629,948.10 = 153,637.40/x
  3. Step 3: Cross multiply
    419,965.40x = 629,948.10 × 153,637.40
  4. Step 4: Simplify right side
    419,965.40x = 96,783,588,218.94
  5. Step 5: Solve for x
    x = 96,783,588,218.94/419,965.40
  6. Step 6: Final answer
    x = 230,456.10

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Similar ratio
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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.