Home / 679,647.21-1,019,515.84-199,917.93

Finding the Fourth Proportional to 679,647.21, 1,019,515.84 and 199,917.93

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Solution

The fourth proportional to 679,647.21, 1,019,515.84 and 199,917.93 is: 299,890.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    679,647.21 : 1,019,515.84 = 199,917.93 : x
  2. Step 2: Convert to fraction form
    679,647.21/1,019,515.84 = 199,917.93/x
  3. Step 3: Cross multiply
    679,647.21x = 1,019,515.84 × 199,917.93
  4. Step 4: Simplify right side
    679,647.21x = 203,819,492,012.03
  5. Step 5: Solve for x
    x = 203,819,492,012.03/679,647.21
  6. Step 6: Final answer
    x = 299,890.13

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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.