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Finding the Fourth Proportional to 462,558.51, 638,295.53 and 281,245.28

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Solution

The fourth proportional to 462,558.51, 638,295.53 and 281,245.28 is: 388,097.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,558.51 : 638,295.53 = 281,245.28 : x
  2. Step 2: Convert to fraction form
    462,558.51/638,295.53 = 281,245.28/x
  3. Step 3: Cross multiply
    462,558.51x = 638,295.53 × 281,245.28
  4. Step 4: Simplify right side
    462,558.51x = 179,517,600,459.89
  5. Step 5: Solve for x
    x = 179,517,600,459.89/462,558.51
  6. Step 6: Final answer
    x = 388,097.07

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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.