Home / 691,127.55-953,760.46-385,223.36

Finding the Fourth Proportional to 691,127.55, 953,760.46 and 385,223.36

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Solution

The fourth proportional to 691,127.55, 953,760.46 and 385,223.36 is: 531,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,127.55 : 953,760.46 = 385,223.36 : x
  2. Step 2: Convert to fraction form
    691,127.55/953,760.46 = 385,223.36/x
  3. Step 3: Cross multiply
    691,127.55x = 953,760.46 × 385,223.36
  4. Step 4: Simplify right side
    691,127.55x = 367,410,809,036.35
  5. Step 5: Solve for x
    x = 367,410,809,036.35/691,127.55
  6. Step 6: Final answer
    x = 531,610.71

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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.