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Finding the Fourth Proportional to 352,421.60, 486,329.46 and 191,273.42

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Solution

The fourth proportional to 352,421.60, 486,329.46 and 191,273.42 is: 263,950.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,421.60 : 486,329.46 = 191,273.42 : x
  2. Step 2: Convert to fraction form
    352,421.60/486,329.46 = 191,273.42/x
  3. Step 3: Cross multiply
    352,421.60x = 486,329.46 × 191,273.42
  4. Step 4: Simplify right side
    352,421.60x = 93,021,899,060.95
  5. Step 5: Solve for x
    x = 93,021,899,060.95/352,421.60
  6. Step 6: Final answer
    x = 263,950.62

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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.