Home / 1,286,989.36-1,776,021.69-714,017.23

Finding the Fourth Proportional to 1,286,989.36, 1,776,021.69 and 714,017.23

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Solution

The fourth proportional to 1,286,989.36, 1,776,021.69 and 714,017.23 is: 985,330.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,989.36 : 1,776,021.69 = 714,017.23 : x
  2. Step 2: Convert to fraction form
    1,286,989.36/1,776,021.69 = 714,017.23/x
  3. Step 3: Cross multiply
    1,286,989.36x = 1,776,021.69 × 714,017.23
  4. Step 4: Simplify right side
    1,286,989.36x = 1,268,110,085,751.23
  5. Step 5: Solve for x
    x = 1,268,110,085,751.23/1,286,989.36
  6. Step 6: Final answer
    x = 985,330.67

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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.