Home / 823,645.65-1,236,267.44-397,481.40

Finding the Fourth Proportional to 823,645.65, 1,236,267.44 and 397,481.40

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Solution

The fourth proportional to 823,645.65, 1,236,267.44 and 397,481.40 is: 596,607.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,645.65 : 1,236,267.44 = 397,481.40 : x
  2. Step 2: Convert to fraction form
    823,645.65/1,236,267.44 = 397,481.40/x
  3. Step 3: Cross multiply
    823,645.65x = 1,236,267.44 × 397,481.40
  4. Step 4: Simplify right side
    823,645.65x = 491,393,314,687.85
  5. Step 5: Solve for x
    x = 491,393,314,687.85/823,645.65
  6. Step 6: Final answer
    x = 596,607.67

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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.