Home / 419,979.47-579,557.23-238,688.24

Finding the Fourth Proportional to 419,979.47, 579,557.23 and 238,688.24

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Solution

The fourth proportional to 419,979.47, 579,557.23 and 238,688.24 is: 329,381.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,979.47 : 579,557.23 = 238,688.24 : x
  2. Step 2: Convert to fraction form
    419,979.47/579,557.23 = 238,688.24/x
  3. Step 3: Cross multiply
    419,979.47x = 579,557.23 × 238,688.24
  4. Step 4: Simplify right side
    419,979.47x = 138,333,491,713.47
  5. Step 5: Solve for x
    x = 138,333,491,713.47/419,979.47
  6. Step 6: Final answer
    x = 329,381.56

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1.5x scale

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.