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Finding the Fourth Proportional to 469,647.42, 648,113.70 and 254,787.46

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Solution

The fourth proportional to 469,647.42, 648,113.70 and 254,787.46 is: 351,606.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,647.42 : 648,113.70 = 254,787.46 : x
  2. Step 2: Convert to fraction form
    469,647.42/648,113.70 = 254,787.46/x
  3. Step 3: Cross multiply
    469,647.42x = 648,113.70 × 254,787.46
  4. Step 4: Simplify right side
    469,647.42x = 165,131,243,414.20
  5. Step 5: Solve for x
    x = 165,131,243,414.20/469,647.42
  6. Step 6: Final answer
    x = 351,606.84

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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.