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Finding the Fourth Proportional to 405,886.52, 608,833.86 and 181,258.33

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Solution

The fourth proportional to 405,886.52, 608,833.86 and 181,258.33 is: 271,889.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,886.52 : 608,833.86 = 181,258.33 : x
  2. Step 2: Convert to fraction form
    405,886.52/608,833.86 = 181,258.33/x
  3. Step 3: Cross multiply
    405,886.52x = 608,833.86 × 181,258.33
  4. Step 4: Simplify right side
    405,886.52x = 110,356,208,711.05
  5. Step 5: Solve for x
    x = 110,356,208,711.05/405,886.52
  6. Step 6: Final answer
    x = 271,889.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.