Home / 1,101,556.53-1,520,143.83-618,120.54

Finding the Fourth Proportional to 1,101,556.53, 1,520,143.83 and 618,120.54

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Solution

The fourth proportional to 1,101,556.53, 1,520,143.83 and 618,120.54 is: 853,004.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,101,556.53 : 1,520,143.83 = 618,120.54 : x
  2. Step 2: Convert to fraction form
    1,101,556.53/1,520,143.83 = 618,120.54/x
  3. Step 3: Cross multiply
    1,101,556.53x = 1,520,143.83 × 618,120.54
  4. Step 4: Simplify right side
    1,101,556.53x = 939,632,125,077.27
  5. Step 5: Solve for x
    x = 939,632,125,077.27/1,101,556.53
  6. Step 6: Final answer
    x = 853,004.00

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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.