Home / 279,622.36-385,756.04-188,945.25

Finding the Fourth Proportional to 279,622.36, 385,756.04 and 188,945.25

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Solution

The fourth proportional to 279,622.36, 385,756.04 and 188,945.25 is: 260,661.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,622.36 : 385,756.04 = 188,945.25 : x
  2. Step 2: Convert to fraction form
    279,622.36/385,756.04 = 188,945.25/x
  3. Step 3: Cross multiply
    279,622.36x = 385,756.04 × 188,945.25
  4. Step 4: Simplify right side
    279,622.36x = 72,886,770,472.08
  5. Step 5: Solve for x
    x = 72,886,770,472.08/279,622.36
  6. Step 6: Final answer
    x = 260,661.46

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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.