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Finding the Fourth Proportional to 469,900.65, 648,463.53 and 255,040.72

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Solution

The fourth proportional to 469,900.65, 648,463.53 and 255,040.72 is: 351,956.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,900.65 : 648,463.53 = 255,040.72 : x
  2. Step 2: Convert to fraction form
    469,900.65/648,463.53 = 255,040.72/x
  3. Step 3: Cross multiply
    469,900.65x = 648,463.53 × 255,040.72
  4. Step 4: Simplify right side
    469,900.65x = 165,384,605,584.94
  5. Step 5: Solve for x
    x = 165,384,605,584.94/469,900.65
  6. Step 6: Final answer
    x = 351,956.54

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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.