Home / 290,913.56-401,458.20-163,586.42

Finding the Fourth Proportional to 290,913.56, 401,458.20 and 163,586.42

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Solution

The fourth proportional to 290,913.56, 401,458.20 and 163,586.42 is: 225,747.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,913.56 : 401,458.20 = 163,586.42 : x
  2. Step 2: Convert to fraction form
    290,913.56/401,458.20 = 163,586.42/x
  3. Step 3: Cross multiply
    290,913.56x = 401,458.20 × 163,586.42
  4. Step 4: Simplify right side
    290,913.56x = 65,673,109,717.64
  5. Step 5: Solve for x
    x = 65,673,109,717.64/290,913.56
  6. Step 6: Final answer
    x = 225,747.85

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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.