Home / 1,314,969.60-1,972,519.20-685,113.60

Finding the Fourth Proportional to 1,314,969.60, 1,972,519.20 and 685,113.60

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Solution

The fourth proportional to 1,314,969.60, 1,972,519.20 and 685,113.60 is: 1,027,704.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,314,969.60 : 1,972,519.20 = 685,113.60 : x
  2. Step 2: Convert to fraction form
    1,314,969.60/1,972,519.20 = 685,113.60/x
  3. Step 3: Cross multiply
    1,314,969.60x = 1,972,519.20 × 685,113.60
  4. Step 4: Simplify right side
    1,314,969.60x = 1,351,399,730,181.12
  5. Step 5: Solve for x
    x = 1,351,399,730,181.12/1,314,969.60
  6. Step 6: Final answer
    x = 1,027,704.16

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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.