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Finding the Fourth Proportional to 353,021.57, 487,173 and 191,876.99

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Solution

The fourth proportional to 353,021.57, 487,173 and 191,876.99 is: 264,792.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,021.57 : 487,173 = 191,876.99 : x
  2. Step 2: Convert to fraction form
    353,021.57/487,173 = 191,876.99/x
  3. Step 3: Cross multiply
    353,021.57x = 487,173 × 191,876.99
  4. Step 4: Simplify right side
    353,021.57x = 93,477,288,849.27
  5. Step 5: Solve for x
    x = 93,477,288,849.27/353,021.57
  6. Step 6: Final answer
    x = 264,792.00

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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.