Home / 419,840.05-579,357.40-238,526.81

Finding the Fourth Proportional to 419,840.05, 579,357.40 and 238,526.81

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Solution

The fourth proportional to 419,840.05, 579,357.40 and 238,526.81 is: 329,154.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,840.05 : 579,357.40 = 238,526.81 : x
  2. Step 2: Convert to fraction form
    419,840.05/579,357.40 = 238,526.81/x
  3. Step 3: Cross multiply
    419,840.05x = 579,357.40 × 238,526.81
  4. Step 4: Simplify right side
    419,840.05x = 138,192,272,471.89
  5. Step 5: Solve for x
    x = 138,192,272,471.89/419,840.05
  6. Step 6: Final answer
    x = 329,154.57

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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.