Home / 726,311.60-1,089,467.40-193,834.52

Finding the Fourth Proportional to 726,311.60, 1,089,467.40 and 193,834.52

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Solution

The fourth proportional to 726,311.60, 1,089,467.40 and 193,834.52 is: 290,751.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,311.60 : 1,089,467.40 = 193,834.52 : x
  2. Step 2: Convert to fraction form
    726,311.60/1,089,467.40 = 193,834.52/x
  3. Step 3: Cross multiply
    726,311.60x = 1,089,467.40 × 193,834.52
  4. Step 4: Simplify right side
    726,311.60x = 211,176,390,534.65
  5. Step 5: Solve for x
    x = 211,176,390,534.65/726,311.60
  6. Step 6: Final answer
    x = 290,751.78

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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.