Home / 385,023.85-531,305.94-223,867.47

Finding the Fourth Proportional to 385,023.85, 531,305.94 and 223,867.47

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Solution

The fourth proportional to 385,023.85, 531,305.94 and 223,867.47 is: 308,921.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,023.85 : 531,305.94 = 223,867.47 : x
  2. Step 2: Convert to fraction form
    385,023.85/531,305.94 = 223,867.47/x
  3. Step 3: Cross multiply
    385,023.85x = 531,305.94 × 223,867.47
  4. Step 4: Simplify right side
    385,023.85x = 118,942,116,583.77
  5. Step 5: Solve for x
    x = 118,942,116,583.77/385,023.85
  6. Step 6: Final answer
    x = 308,921.43

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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.