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Finding the Fourth Proportional to 469,903.58, 648,467.53 and 255,043.65

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Solution

The fourth proportional to 469,903.58, 648,467.53 and 255,043.65 is: 351,960.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,903.58 : 648,467.53 = 255,043.65 : x
  2. Step 2: Convert to fraction form
    469,903.58/648,467.53 = 255,043.65/x
  3. Step 3: Cross multiply
    469,903.58x = 648,467.53 × 255,043.65
  4. Step 4: Simplify right side
    469,903.58x = 165,387,525,120.08
  5. Step 5: Solve for x
    x = 165,387,525,120.08/469,903.58
  6. Step 6: Final answer
    x = 351,960.56

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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.