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Finding the Fourth Proportional to 823,672.64, 1,235,521.12 and 325,032

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Solution

The fourth proportional to 823,672.64, 1,235,521.12 and 325,032 is: 487,552.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,672.64 : 1,235,521.12 = 325,032 : x
  2. Step 2: Convert to fraction form
    823,672.64/1,235,521.12 = 325,032/x
  3. Step 3: Cross multiply
    823,672.64x = 1,235,521.12 × 325,032
  4. Step 4: Simplify right side
    823,672.64x = 401,583,900,675.84
  5. Step 5: Solve for x
    x = 401,583,900,675.84/823,672.64
  6. Step 6: Final answer
    x = 487,552.80

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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.