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Finding the Fourth Proportional to 531,390.40, 796,531.92 and 231,790.48

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Solution

The fourth proportional to 531,390.40, 796,531.92 and 231,790.48 is: 347,444.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,390.40 : 796,531.92 = 231,790.48 : x
  2. Step 2: Convert to fraction form
    531,390.40/796,531.92 = 231,790.48/x
  3. Step 3: Cross multiply
    531,390.40x = 796,531.92 × 231,790.48
  4. Step 4: Simplify right side
    531,390.40x = 184,628,516,072.12
  5. Step 5: Solve for x
    x = 184,628,516,072.12/531,390.40
  6. Step 6: Final answer
    x = 347,444.21

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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.