Home / 531,817.11-733,912.29-290,100.78

Finding the Fourth Proportional to 531,817.11, 733,912.29 and 290,100.78

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Solution

The fourth proportional to 531,817.11, 733,912.29 and 290,100.78 is: 400,341.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,817.11 : 733,912.29 = 290,100.78 : x
  2. Step 2: Convert to fraction form
    531,817.11/733,912.29 = 290,100.78/x
  3. Step 3: Cross multiply
    531,817.11x = 733,912.29 × 290,100.78
  4. Step 4: Simplify right side
    531,817.11x = 212,908,527,780.59
  5. Step 5: Solve for x
    x = 212,908,527,780.59/531,817.11
  6. Step 6: Final answer
    x = 400,341.63

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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.