Home / 691,126.55-953,759.08-385,222.36

Finding the Fourth Proportional to 691,126.55, 953,759.08 and 385,222.36

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Solution

The fourth proportional to 691,126.55, 953,759.08 and 385,222.36 is: 531,609.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,126.55 : 953,759.08 = 385,222.36 : x
  2. Step 2: Convert to fraction form
    691,126.55/953,759.08 = 385,222.36/x
  3. Step 3: Cross multiply
    691,126.55x = 953,759.08 × 385,222.36
  4. Step 4: Simplify right side
    691,126.55x = 367,409,319,788.57
  5. Step 5: Solve for x
    x = 367,409,319,788.57/691,126.55
  6. Step 6: Final answer
    x = 531,609.33

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1.5x scale

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.