Home / 1,089,393.27-1,634,090.06-290,677.78

Finding the Fourth Proportional to 1,089,393.27, 1,634,090.06 and 290,677.78

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Solution

The fourth proportional to 1,089,393.27, 1,634,090.06 and 290,677.78 is: 436,016.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,393.27 : 1,634,090.06 = 290,677.78 : x
  2. Step 2: Convert to fraction form
    1,089,393.27/1,634,090.06 = 290,677.78/x
  3. Step 3: Cross multiply
    1,089,393.27x = 1,634,090.06 × 290,677.78
  4. Step 4: Simplify right side
    1,089,393.27x = 474,993,670,960.87
  5. Step 5: Solve for x
    x = 474,993,670,960.87/1,089,393.27
  6. Step 6: Final answer
    x = 436,016.71

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Double scale
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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.