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Finding the Fourth Proportional to 531,526.05, 797,369.40 and 171,576.63

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Solution

The fourth proportional to 531,526.05, 797,369.40 and 171,576.63 is: 257,390.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,526.05 : 797,369.40 = 171,576.63 : x
  2. Step 2: Convert to fraction form
    531,526.05/797,369.40 = 171,576.63/x
  3. Step 3: Cross multiply
    531,526.05x = 797,369.40 × 171,576.63
  4. Step 4: Simplify right side
    531,526.05x = 136,809,954,517.12
  5. Step 5: Solve for x
    x = 136,809,954,517.12/531,526.05
  6. Step 6: Final answer
    x = 257,390.87

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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.