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Finding the Fourth Proportional to 469,928.62, 648,502.16 and 255,068.73

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Solution

The fourth proportional to 469,928.62, 648,502.16 and 255,068.73 is: 351,995.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,928.62 : 648,502.16 = 255,068.73 : x
  2. Step 2: Convert to fraction form
    469,928.62/648,502.16 = 255,068.73/x
  3. Step 3: Cross multiply
    469,928.62x = 648,502.16 × 255,068.73
  4. Step 4: Simplify right side
    469,928.62x = 165,412,622,353.46
  5. Step 5: Solve for x
    x = 165,412,622,353.46/469,928.62
  6. Step 6: Final answer
    x = 351,995.21

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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.