Home / 1,089,189.88-1,503,192.21-624,105.34

Finding the Fourth Proportional to 1,089,189.88, 1,503,192.21 and 624,105.34

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Solution

The fourth proportional to 1,089,189.88, 1,503,192.21 and 624,105.34 is: 861,328.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,089,189.88 : 1,503,192.21 = 624,105.34 : x
  2. Step 2: Convert to fraction form
    1,089,189.88/1,503,192.21 = 624,105.34/x
  3. Step 3: Cross multiply
    1,089,189.88x = 1,503,192.21 × 624,105.34
  4. Step 4: Simplify right side
    1,089,189.88x = 938,150,285,307.40
  5. Step 5: Solve for x
    x = 938,150,285,307.40/1,089,189.88
  6. Step 6: Final answer
    x = 861,328.50

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Double scale
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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.