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Finding the Fourth Proportional to 442,434.21, 610,483.75 and 248,791.76

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Solution

The fourth proportional to 442,434.21, 610,483.75 and 248,791.76 is: 343,290.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,434.21 : 610,483.75 = 248,791.76 : x
  2. Step 2: Convert to fraction form
    442,434.21/610,483.75 = 248,791.76/x
  3. Step 3: Cross multiply
    442,434.21x = 610,483.75 × 248,791.76
  4. Step 4: Simplify right side
    442,434.21x = 151,883,325,228.82
  5. Step 5: Solve for x
    x = 151,883,325,228.82/442,434.21
  6. Step 6: Final answer
    x = 343,290.20

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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.