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Finding the Fourth Proportional to 358,307.90, 494,468.42 and 197,166.42

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Solution

The fourth proportional to 358,307.90, 494,468.42 and 197,166.42 is: 272,091.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,307.90 : 494,468.42 = 197,166.42 : x
  2. Step 2: Convert to fraction form
    358,307.90/494,468.42 = 197,166.42/x
  3. Step 3: Cross multiply
    358,307.90x = 494,468.42 × 197,166.42
  4. Step 4: Simplify right side
    358,307.90x = 97,492,568,174.46
  5. Step 5: Solve for x
    x = 97,492,568,174.46/358,307.90
  6. Step 6: Final answer
    x = 272,091.60

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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.