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Finding the Fourth Proportional to 531,227, 796,996.56 and 157,259.72

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Solution

The fourth proportional to 531,227, 796,996.56 and 157,259.72 is: 235,935.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,227 : 796,996.56 = 157,259.72 : x
  2. Step 2: Convert to fraction form
    531,227/796,996.56 = 157,259.72/x
  3. Step 3: Cross multiply
    531,227x = 796,996.56 × 157,259.72
  4. Step 4: Simplify right side
    531,227x = 125,335,455,866.56
  5. Step 5: Solve for x
    x = 125,335,455,866.56/531,227
  6. Step 6: Final answer
    x = 235,935.78

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1.5x scale

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.