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Finding the Fourth Proportional to 462,563.56, 638,534.44 and 281,333.71

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Solution

The fourth proportional to 462,563.56, 638,534.44 and 281,333.71 is: 388,360.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,563.56 : 638,534.44 = 281,333.71 : x
  2. Step 2: Convert to fraction form
    462,563.56/638,534.44 = 281,333.71/x
  3. Step 3: Cross multiply
    462,563.56x = 638,534.44 × 281,333.71
  4. Step 4: Simplify right side
    462,563.56x = 179,641,260,526.05
  5. Step 5: Solve for x
    x = 179,641,260,526.05/462,563.56
  6. Step 6: Final answer
    x = 388,360.16

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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.