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Finding the Fourth Proportional to 301,085.70, 451,628.55 and 189,111.30

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Solution

The fourth proportional to 301,085.70, 451,628.55 and 189,111.30 is: 283,666.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,085.70 : 451,628.55 = 189,111.30 : x
  2. Step 2: Convert to fraction form
    301,085.70/451,628.55 = 189,111.30/x
  3. Step 3: Cross multiply
    301,085.70x = 451,628.55 × 189,111.30
  4. Step 4: Simplify right side
    301,085.70x = 85,408,062,207.62
  5. Step 5: Solve for x
    x = 85,408,062,207.62/301,085.70
  6. Step 6: Final answer
    x = 283,666.95

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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.