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Finding the Fourth Proportional to 462,554.76, 638,290.35 and 281,241.53

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Solution

The fourth proportional to 462,554.76, 638,290.35 and 281,241.53 is: 388,091.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,554.76 : 638,290.35 = 281,241.53 : x
  2. Step 2: Convert to fraction form
    462,554.76/638,290.35 = 281,241.53/x
  3. Step 3: Cross multiply
    462,554.76x = 638,290.35 × 281,241.53
  4. Step 4: Simplify right side
    462,554.76x = 179,513,751,426.78
  5. Step 5: Solve for x
    x = 179,513,751,426.78/462,554.76
  6. Step 6: Final answer
    x = 388,091.89

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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.