Home / 691,142.37-953,660.84-385,151.64

Finding the Fourth Proportional to 691,142.37, 953,660.84 and 385,151.64

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Solution

The fourth proportional to 691,142.37, 953,660.84 and 385,151.64 is: 531,444.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,142.37 : 953,660.84 = 385,151.64 : x
  2. Step 2: Convert to fraction form
    691,142.37/953,660.84 = 385,151.64/x
  3. Step 3: Cross multiply
    691,142.37x = 953,660.84 × 385,151.64
  4. Step 4: Simplify right side
    691,142.37x = 367,304,034,604.02
  5. Step 5: Solve for x
    x = 367,304,034,604.02/691,142.37
  6. Step 6: Final answer
    x = 531,444.82

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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.