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Finding the Fourth Proportional to 469,847.88, 648,394.86 and 254,989.80

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Solution

The fourth proportional to 469,847.88, 648,394.86 and 254,989.80 is: 351,888.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,847.88 : 648,394.86 = 254,989.80 : x
  2. Step 2: Convert to fraction form
    469,847.88/648,394.86 = 254,989.80/x
  3. Step 3: Cross multiply
    469,847.88x = 648,394.86 × 254,989.80
  4. Step 4: Simplify right side
    469,847.88x = 165,334,075,672.43
  5. Step 5: Solve for x
    x = 165,334,075,672.43/469,847.88
  6. Step 6: Final answer
    x = 351,888.52

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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.