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Finding the Fourth Proportional to 531,100.31, 733,218.80 and 367,993.85

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Solution

The fourth proportional to 531,100.31, 733,218.80 and 367,993.85 is: 508,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,100.31 : 733,218.80 = 367,993.85 : x
  2. Step 2: Convert to fraction form
    531,100.31/733,218.80 = 367,993.85/x
  3. Step 3: Cross multiply
    531,100.31x = 733,218.80 × 367,993.85
  4. Step 4: Simplify right side
    531,100.31x = 269,820,003,598.32
  5. Step 5: Solve for x
    x = 269,820,003,598.32/531,100.31
  6. Step 6: Final answer
    x = 508,039.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.