Home / 925,590.48-1,388,245.44-318,471.12

Finding the Fourth Proportional to 925,590.48, 1,388,245.44 and 318,471.12

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Solution

The fourth proportional to 925,590.48, 1,388,245.44 and 318,471.12 is: 477,658.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    925,590.48 : 1,388,245.44 = 318,471.12 : x
  2. Step 2: Convert to fraction form
    925,590.48/1,388,245.44 = 318,471.12/x
  3. Step 3: Cross multiply
    925,590.48x = 1,388,245.44 × 318,471.12
  4. Step 4: Simplify right side
    925,590.48x = 442,116,080,111.69
  5. Step 5: Solve for x
    x = 442,116,080,111.69/925,590.48
  6. Step 6: Final answer
    x = 477,658.41

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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.