Home / 691,144.05-953,788.28-385,211.91

Finding the Fourth Proportional to 691,144.05, 953,788.28 and 385,211.91

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Solution

The fourth proportional to 691,144.05, 953,788.28 and 385,211.91 is: 531,597.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,144.05 : 953,788.28 = 385,211.91 : x
  2. Step 2: Convert to fraction form
    691,144.05/953,788.28 = 385,211.91/x
  3. Step 3: Cross multiply
    691,144.05x = 953,788.28 × 385,211.91
  4. Step 4: Simplify right side
    691,144.05x = 367,410,603,148.36
  5. Step 5: Solve for x
    x = 367,410,603,148.36/691,144.05
  6. Step 6: Final answer
    x = 531,597.72

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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.