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Finding the Fourth Proportional to 358,568.13, 494,812.89 and 197,408.10

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Solution

The fourth proportional to 358,568.13, 494,812.89 and 197,408.10 is: 272,417.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,568.13 : 494,812.89 = 197,408.10 : x
  2. Step 2: Convert to fraction form
    358,568.13/494,812.89 = 197,408.10/x
  3. Step 3: Cross multiply
    358,568.13x = 494,812.89 × 197,408.10
  4. Step 4: Simplify right side
    358,568.13x = 97,680,072,470.41
  5. Step 5: Solve for x
    x = 97,680,072,470.41/358,568.13
  6. Step 6: Final answer
    x = 272,417.05

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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.