Home / 389,258.80-583,616.52-199,350.16

Finding the Fourth Proportional to 389,258.80, 583,616.52 and 199,350.16

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Solution

The fourth proportional to 389,258.80, 583,616.52 and 199,350.16 is: 298,886.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,258.80 : 583,616.52 = 199,350.16 : x
  2. Step 2: Convert to fraction form
    389,258.80/583,616.52 = 199,350.16/x
  3. Step 3: Cross multiply
    389,258.80x = 583,616.52 × 199,350.16
  4. Step 4: Simplify right side
    389,258.80x = 116,344,046,640.64
  5. Step 5: Solve for x
    x = 116,344,046,640.64/389,258.80
  6. Step 6: Final answer
    x = 298,886.11

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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.