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Finding the Fourth Proportional to 408,005.33, 562,886.18 and 235,891.77

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Solution

The fourth proportional to 408,005.33, 562,886.18 and 235,891.77 is: 325,437.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,005.33 : 562,886.18 = 235,891.77 : x
  2. Step 2: Convert to fraction form
    408,005.33/562,886.18 = 235,891.77/x
  3. Step 3: Cross multiply
    408,005.33x = 562,886.18 × 235,891.77
  4. Step 4: Simplify right side
    408,005.33x = 132,780,216,129.28
  5. Step 5: Solve for x
    x = 132,780,216,129.28/408,005.33
  6. Step 6: Final answer
    x = 325,437.46

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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.