Home / 389,621.10-584,431.65-200,664.30

Finding the Fourth Proportional to 389,621.10, 584,431.65 and 200,664.30

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Solution

The fourth proportional to 389,621.10, 584,431.65 and 200,664.30 is: 300,996.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,621.10 : 584,431.65 = 200,664.30 : x
  2. Step 2: Convert to fraction form
    389,621.10/584,431.65 = 200,664.30/x
  3. Step 3: Cross multiply
    389,621.10x = 584,431.65 × 200,664.30
  4. Step 4: Simplify right side
    389,621.10x = 117,274,567,945.10
  5. Step 5: Solve for x
    x = 117,274,567,945.10/389,621.10
  6. Step 6: Final answer
    x = 300,996.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.