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Finding the Fourth Proportional to 354,049.14, 531,707.94 and 339,778.97

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Solution

The fourth proportional to 354,049.14, 531,707.94 and 339,778.97 is: 510,277.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,049.14 : 531,707.94 = 339,778.97 : x
  2. Step 2: Convert to fraction form
    354,049.14/531,707.94 = 339,778.97/x
  3. Step 3: Cross multiply
    354,049.14x = 531,707.94 × 339,778.97
  4. Step 4: Simplify right side
    354,049.14x = 180,663,173,535.48
  5. Step 5: Solve for x
    x = 180,663,173,535.48/354,049.14
  6. Step 6: Final answer
    x = 510,277.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.