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Finding the Fourth Proportional to 358,499.55, 494,743.50 and 197,369.58

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Solution

The fourth proportional to 358,499.55, 494,743.50 and 197,369.58 is: 272,377.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,499.55 : 494,743.50 = 197,369.58 : x
  2. Step 2: Convert to fraction form
    358,499.55/494,743.50 = 197,369.58/x
  3. Step 3: Cross multiply
    358,499.55x = 494,743.50 × 197,369.58
  4. Step 4: Simplify right side
    358,499.55x = 97,647,316,802.73
  5. Step 5: Solve for x
    x = 97,647,316,802.73/358,499.55
  6. Step 6: Final answer
    x = 272,377.79

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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.