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Finding the Fourth Proportional to 896,702, 1,237,448.76 and 494,302.64

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Solution

The fourth proportional to 896,702, 1,237,448.76 and 494,302.64 is: 682,137.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    896,702 : 1,237,448.76 = 494,302.64 : x
  2. Step 2: Convert to fraction form
    896,702/1,237,448.76 = 494,302.64/x
  3. Step 3: Cross multiply
    896,702x = 1,237,448.76 × 494,302.64
  4. Step 4: Simplify right side
    896,702x = 611,674,188,932.73
  5. Step 5: Solve for x
    x = 611,674,188,932.73/896,702
  6. Step 6: Final answer
    x = 682,137.64

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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.