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Finding the Fourth Proportional to 358,061.77, 494,115.37 and 196,916.80

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Solution

The fourth proportional to 358,061.77, 494,115.37 and 196,916.80 is: 271,739.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,061.77 : 494,115.37 = 196,916.80 : x
  2. Step 2: Convert to fraction form
    358,061.77/494,115.37 = 196,916.80/x
  3. Step 3: Cross multiply
    358,061.77x = 494,115.37 × 196,916.80
  4. Step 4: Simplify right side
    358,061.77x = 97,299,617,491.22
  5. Step 5: Solve for x
    x = 97,299,617,491.22/358,061.77
  6. Step 6: Final answer
    x = 271,739.75

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1.5x scale

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.