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Finding the Fourth Proportional to 903,391.80, 1,354,223.70 and 334,620.60

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Solution

The fourth proportional to 903,391.80, 1,354,223.70 and 334,620.60 is: 501,610.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,391.80 : 1,354,223.70 = 334,620.60 : x
  2. Step 2: Convert to fraction form
    903,391.80/1,354,223.70 = 334,620.60/x
  3. Step 3: Cross multiply
    903,391.80x = 1,354,223.70 × 334,620.60
  4. Step 4: Simplify right side
    903,391.80x = 453,151,147,028.22
  5. Step 5: Solve for x
    x = 453,151,147,028.22/903,391.80
  6. Step 6: Final answer
    x = 501,610.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.