Home / 722,816.40-1,084,277.88-190,333.76

Finding the Fourth Proportional to 722,816.40, 1,084,277.88 and 190,333.76

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Solution

The fourth proportional to 722,816.40, 1,084,277.88 and 190,333.76 is: 285,514.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,816.40 : 1,084,277.88 = 190,333.76 : x
  2. Step 2: Convert to fraction form
    722,816.40/1,084,277.88 = 190,333.76/x
  3. Step 3: Cross multiply
    722,816.40x = 1,084,277.88 × 190,333.76
  4. Step 4: Simplify right side
    722,816.40x = 206,374,685,785.23
  5. Step 5: Solve for x
    x = 206,374,685,785.23/722,816.40
  6. Step 6: Final answer
    x = 285,514.67

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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.