Home / 389,612.20-583,998.54-190,067.08

Finding the Fourth Proportional to 389,612.20, 583,998.54 and 190,067.08

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Solution

The fourth proportional to 389,612.20, 583,998.54 and 190,067.08 is: 284,895.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,612.20 : 583,998.54 = 190,067.08 : x
  2. Step 2: Convert to fraction form
    389,612.20/583,998.54 = 190,067.08/x
  3. Step 3: Cross multiply
    389,612.20x = 583,998.54 × 190,067.08
  4. Step 4: Simplify right side
    389,612.20x = 110,998,897,222.06
  5. Step 5: Solve for x
    x = 110,998,897,222.06/389,612.20
  6. Step 6: Final answer
    x = 284,895.85

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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.