Home / 419,781.14-579,079.72-266,557.18

Finding the Fourth Proportional to 419,781.14, 579,079.72 and 266,557.18

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Solution

The fourth proportional to 419,781.14, 579,079.72 and 266,557.18 is: 367,710.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,781.14 : 579,079.72 = 266,557.18 : x
  2. Step 2: Convert to fraction form
    419,781.14/579,079.72 = 266,557.18/x
  3. Step 3: Cross multiply
    419,781.14x = 579,079.72 × 266,557.18
  4. Step 4: Simplify right side
    419,781.14x = 154,357,857,158.39
  5. Step 5: Solve for x
    x = 154,357,857,158.39/419,781.14
  6. Step 6: Final answer
    x = 367,710.32

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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.