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Finding the Fourth Proportional to 453,638.07, 624,669.26 and 443,568.65

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Solution

The fourth proportional to 453,638.07, 624,669.26 and 443,568.65 is: 610,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,638.07 : 624,669.26 = 443,568.65 : x
  2. Step 2: Convert to fraction form
    453,638.07/624,669.26 = 443,568.65/x
  3. Step 3: Cross multiply
    453,638.07x = 624,669.26 × 443,568.65
  4. Step 4: Simplify right side
    453,638.07x = 277,083,695,013.51
  5. Step 5: Solve for x
    x = 277,083,695,013.51/453,638.07
  6. Step 6: Final answer
    x = 610,803.44

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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.