Home / 691,132.73-953,647.53-385,142.04

Finding the Fourth Proportional to 691,132.73, 953,647.53 and 385,142.04

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Solution

The fourth proportional to 691,132.73, 953,647.53 and 385,142.04 is: 531,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,132.73 : 953,647.53 = 385,142.04 : x
  2. Step 2: Convert to fraction form
    691,132.73/953,647.53 = 385,142.04/x
  3. Step 3: Cross multiply
    691,132.73x = 953,647.53 × 385,142.04
  4. Step 4: Simplify right side
    691,132.73x = 367,289,755,145.16
  5. Step 5: Solve for x
    x = 367,289,755,145.16/691,132.73
  6. Step 6: Final answer
    x = 531,431.57

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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.