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Finding the Fourth Proportional to 453,638.82, 624,670.29 and 443,569.40

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Solution

The fourth proportional to 453,638.82, 624,670.29 and 443,569.40 is: 610,804.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,638.82 : 624,670.29 = 443,569.40 : x
  2. Step 2: Convert to fraction form
    453,638.82/624,670.29 = 443,569.40/x
  3. Step 3: Cross multiply
    453,638.82x = 624,670.29 × 443,569.40
  4. Step 4: Simplify right side
    453,638.82x = 277,084,622,609.78
  5. Step 5: Solve for x
    x = 277,084,622,609.78/453,638.82
  6. Step 6: Final answer
    x = 610,804.48

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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.