Home / 531,816.33-733,916.80-290,107.78

Finding the Fourth Proportional to 531,816.33, 733,916.80 and 290,107.78

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Solution

The fourth proportional to 531,816.33, 733,916.80 and 290,107.78 is: 400,354.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,816.33 : 733,916.80 = 290,107.78 : x
  2. Step 2: Convert to fraction form
    531,816.33/733,916.80 = 290,107.78/x
  3. Step 3: Cross multiply
    531,816.33x = 733,916.80 × 290,107.78
  4. Step 4: Simplify right side
    531,816.33x = 212,914,972,080.55
  5. Step 5: Solve for x
    x = 212,914,972,080.55/531,816.33
  6. Step 6: Final answer
    x = 400,354.33

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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.