Home / 531,263.16-733,121.78-289,540.53

Finding the Fourth Proportional to 531,263.16, 733,121.78 and 289,540.53

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Solution

The fourth proportional to 531,263.16, 733,121.78 and 289,540.53 is: 399,554.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,263.16 : 733,121.78 = 289,540.53 : x
  2. Step 2: Convert to fraction form
    531,263.16/733,121.78 = 289,540.53/x
  3. Step 3: Cross multiply
    531,263.16x = 733,121.78 × 289,540.53
  4. Step 4: Simplify right side
    531,263.16x = 212,268,467,288.04
  5. Step 5: Solve for x
    x = 212,268,467,288.04/531,263.16
  6. Step 6: Final answer
    x = 399,554.28

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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.