Home / 385,243.37-531,625.62-213,156.85

Finding the Fourth Proportional to 385,243.37, 531,625.62 and 213,156.85

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Solution

The fourth proportional to 385,243.37, 531,625.62 and 213,156.85 is: 294,150.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,243.37 : 531,625.62 = 213,156.85 : x
  2. Step 2: Convert to fraction form
    385,243.37/531,625.62 = 213,156.85/x
  3. Step 3: Cross multiply
    385,243.37x = 531,625.62 × 213,156.85
  4. Step 4: Simplify right side
    385,243.37x = 113,319,642,538.50
  5. Step 5: Solve for x
    x = 113,319,642,538.50/385,243.37
  6. Step 6: Final answer
    x = 294,150.79

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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.