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Finding the Fourth Proportional to 616,532.80, 925,749.60 and 336,596.80

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Solution

The fourth proportional to 616,532.80, 925,749.60 and 336,596.80 is: 505,414.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,532.80 : 925,749.60 = 336,596.80 : x
  2. Step 2: Convert to fraction form
    616,532.80/925,749.60 = 336,596.80/x
  3. Step 3: Cross multiply
    616,532.80x = 925,749.60 × 336,596.80
  4. Step 4: Simplify right side
    616,532.80x = 311,604,352,961.28
  5. Step 5: Solve for x
    x = 311,604,352,961.28/616,532.80
  6. Step 6: Final answer
    x = 505,414.07

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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.