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Finding the Fourth Proportional to 504,772.45, 696,586.50 and 289,954.07

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Solution

The fourth proportional to 504,772.45, 696,586.50 and 289,954.07 is: 400,136.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,772.45 : 696,586.50 = 289,954.07 : x
  2. Step 2: Convert to fraction form
    504,772.45/696,586.50 = 289,954.07/x
  3. Step 3: Cross multiply
    504,772.45x = 696,586.50 × 289,954.07
  4. Step 4: Simplify right side
    504,772.45x = 201,978,090,782.06
  5. Step 5: Solve for x
    x = 201,978,090,782.06/504,772.45
  6. Step 6: Final answer
    x = 400,136.91

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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.