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Finding the Fourth Proportional to 528,990.32, 793,235.33 and 204,930.20

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Solution

The fourth proportional to 528,990.32, 793,235.33 and 204,930.20 is: 307,298.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,990.32 : 793,235.33 = 204,930.20 : x
  2. Step 2: Convert to fraction form
    528,990.32/793,235.33 = 204,930.20/x
  3. Step 3: Cross multiply
    528,990.32x = 793,235.33 × 204,930.20
  4. Step 4: Simplify right side
    528,990.32x = 162,557,869,833.14
  5. Step 5: Solve for x
    x = 162,557,869,833.14/528,990.32
  6. Step 6: Final answer
    x = 307,298.39

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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.