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Finding the Fourth Proportional to 469,883.34, 648,445.23 and 255,025.98

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Solution

The fourth proportional to 469,883.34, 648,445.23 and 255,025.98 is: 351,939.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,883.34 : 648,445.23 = 255,025.98 : x
  2. Step 2: Convert to fraction form
    469,883.34/648,445.23 = 255,025.98/x
  3. Step 3: Cross multiply
    469,883.34x = 648,445.23 × 255,025.98
  4. Step 4: Simplify right side
    469,883.34x = 165,370,380,257.08
  5. Step 5: Solve for x
    x = 165,370,380,257.08/469,883.34
  6. Step 6: Final answer
    x = 351,939.23

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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.