Home / 419,586.45-579,009.15-238,274.43

Finding the Fourth Proportional to 419,586.45, 579,009.15 and 238,274.43

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Solution

The fourth proportional to 419,586.45, 579,009.15 and 238,274.43 is: 328,807.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,586.45 : 579,009.15 = 238,274.43 : x
  2. Step 2: Convert to fraction form
    419,586.45/579,009.15 = 238,274.43/x
  3. Step 3: Cross multiply
    419,586.45x = 579,009.15 × 238,274.43
  4. Step 4: Simplify right side
    419,586.45x = 137,963,073,733.51
  5. Step 5: Solve for x
    x = 137,963,073,733.51/419,586.45
  6. Step 6: Final answer
    x = 328,807.27

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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.