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Finding the Fourth Proportional to 531,638.28, 796,554.72 and 320,833.26

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Solution

The fourth proportional to 531,638.28, 796,554.72 and 320,833.26 is: 480,705.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,638.28 : 796,554.72 = 320,833.26 : x
  2. Step 2: Convert to fraction form
    531,638.28/796,554.72 = 320,833.26/x
  3. Step 3: Cross multiply
    531,638.28x = 796,554.72 × 320,833.26
  4. Step 4: Simplify right side
    531,638.28x = 255,561,247,585.99
  5. Step 5: Solve for x
    x = 255,561,247,585.99/531,638.28
  6. Step 6: Final answer
    x = 480,705.13

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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.