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Finding the Fourth Proportional to 375,645.46, 518,389.74 and 203,568.22

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Solution

The fourth proportional to 375,645.46, 518,389.74 and 203,568.22 is: 280,923.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,645.46 : 518,389.74 = 203,568.22 : x
  2. Step 2: Convert to fraction form
    375,645.46/518,389.74 = 203,568.22/x
  3. Step 3: Cross multiply
    375,645.46x = 518,389.74 × 203,568.22
  4. Step 4: Simplify right side
    375,645.46x = 105,527,676,638.06
  5. Step 5: Solve for x
    x = 105,527,676,638.06/375,645.46
  6. Step 6: Final answer
    x = 280,923.60

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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.