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Finding the Fourth Proportional to 358,535.57, 494,769.51 and 197,391.83

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Solution

The fourth proportional to 358,535.57, 494,769.51 and 197,391.83 is: 272,395.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,535.57 : 494,769.51 = 197,391.83 : x
  2. Step 2: Convert to fraction form
    358,535.57/494,769.51 = 197,391.83/x
  3. Step 3: Cross multiply
    358,535.57x = 494,769.51 × 197,391.83
  4. Step 4: Simplify right side
    358,535.57x = 97,663,456,533.26
  5. Step 5: Solve for x
    x = 97,663,456,533.26/358,535.57
  6. Step 6: Final answer
    x = 272,395.45

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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.