Home / 931,605.84-1,397,408.09-300,519.68

Finding the Fourth Proportional to 931,605.84, 1,397,408.09 and 300,519.68

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Solution

The fourth proportional to 931,605.84, 1,397,408.09 and 300,519.68 is: 450,779.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,605.84 : 1,397,408.09 = 300,519.68 : x
  2. Step 2: Convert to fraction form
    931,605.84/1,397,408.09 = 300,519.68/x
  3. Step 3: Cross multiply
    931,605.84x = 1,397,408.09 × 300,519.68
  4. Step 4: Simplify right side
    931,605.84x = 419,948,623,546.57
  5. Step 5: Solve for x
    x = 419,948,623,546.57/931,605.84
  6. Step 6: Final answer
    x = 450,779.29

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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.