Home / 389,618.10-584,427.15-200,661.30

Finding the Fourth Proportional to 389,618.10, 584,427.15 and 200,661.30

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Solution

The fourth proportional to 389,618.10, 584,427.15 and 200,661.30 is: 300,991.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,618.10 : 584,427.15 = 200,661.30 : x
  2. Step 2: Convert to fraction form
    389,618.10/584,427.15 = 200,661.30/x
  3. Step 3: Cross multiply
    389,618.10x = 584,427.15 × 200,661.30
  4. Step 4: Simplify right side
    389,618.10x = 117,271,911,674.30
  5. Step 5: Solve for x
    x = 117,271,911,674.30/389,618.10
  6. Step 6: Final answer
    x = 300,991.95

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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.