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Finding the Fourth Proportional to 421,957.99, 582,250.89 and 336,135.61

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Solution

The fourth proportional to 421,957.99, 582,250.89 and 336,135.61 is: 463,826.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,957.99 : 582,250.89 = 336,135.61 : x
  2. Step 2: Convert to fraction form
    421,957.99/582,250.89 = 336,135.61/x
  3. Step 3: Cross multiply
    421,957.99x = 582,250.89 × 336,135.61
  4. Step 4: Simplify right side
    421,957.99x = 195,715,258,083.19
  5. Step 5: Solve for x
    x = 195,715,258,083.19/421,957.99
  6. Step 6: Final answer
    x = 463,826.41

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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.