Home / 691,081.07-953,769.33-385,185.38

Finding the Fourth Proportional to 691,081.07, 953,769.33 and 385,185.38

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Solution

The fourth proportional to 691,081.07, 953,769.33 and 385,185.38 is: 531,598.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,081.07 : 953,769.33 = 385,185.38 : x
  2. Step 2: Convert to fraction form
    691,081.07/953,769.33 = 385,185.38/x
  3. Step 3: Cross multiply
    691,081.07x = 953,769.33 × 385,185.38
  4. Step 4: Simplify right side
    691,081.07x = 367,377,997,039.55
  5. Step 5: Solve for x
    x = 367,377,997,039.55/691,081.07
  6. Step 6: Final answer
    x = 531,598.99

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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.