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Finding the Fourth Proportional to 414,418.21, 571,896.31 and 233,130.28

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Solution

The fourth proportional to 414,418.21, 571,896.31 and 233,130.28 is: 321,719.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    414,418.21 : 571,896.31 = 233,130.28 : x
  2. Step 2: Convert to fraction form
    414,418.21/571,896.31 = 233,130.28/x
  3. Step 3: Cross multiply
    414,418.21x = 571,896.31 × 233,130.28
  4. Step 4: Simplify right side
    414,418.21x = 133,326,346,881.27
  5. Step 5: Solve for x
    x = 133,326,346,881.27/414,418.21
  6. Step 6: Final answer
    x = 321,719.33

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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.