Home / 385,027.60-531,311.10-223,871.23

Finding the Fourth Proportional to 385,027.60, 531,311.10 and 223,871.23

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Solution

The fourth proportional to 385,027.60, 531,311.10 and 223,871.23 is: 308,926.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,027.60 : 531,311.10 = 223,871.23 : x
  2. Step 2: Convert to fraction form
    385,027.60/531,311.10 = 223,871.23/x
  3. Step 3: Cross multiply
    385,027.60x = 531,311.10 × 223,871.23
  4. Step 4: Simplify right side
    385,027.60x = 118,945,269,469.65
  5. Step 5: Solve for x
    x = 118,945,269,469.65/385,027.60
  6. Step 6: Final answer
    x = 308,926.61

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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.