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Finding the Fourth Proportional to 469,661.58, 648,133.20 and 254,801.61

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Solution

The fourth proportional to 469,661.58, 648,133.20 and 254,801.61 is: 351,626.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,661.58 : 648,133.20 = 254,801.61 : x
  2. Step 2: Convert to fraction form
    469,661.58/648,133.20 = 254,801.61/x
  3. Step 3: Cross multiply
    469,661.58x = 648,133.20 × 254,801.61
  4. Step 4: Simplify right side
    469,661.58x = 165,145,382,854.45
  5. Step 5: Solve for x
    x = 165,145,382,854.45/469,661.58
  6. Step 6: Final answer
    x = 351,626.34

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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.