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Finding the Fourth Proportional to 891,991.92, 1,230,852.60 and 504,846.48

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Solution

The fourth proportional to 891,991.92, 1,230,852.60 and 504,846.48 is: 696,633.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,991.92 : 1,230,852.60 = 504,846.48 : x
  2. Step 2: Convert to fraction form
    891,991.92/1,230,852.60 = 504,846.48/x
  3. Step 3: Cross multiply
    891,991.92x = 1,230,852.60 × 504,846.48
  4. Step 4: Simplify right side
    891,991.92x = 621,391,602,508.85
  5. Step 5: Solve for x
    x = 621,391,602,508.85/891,991.92
  6. Step 6: Final answer
    x = 696,633.67

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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.