Home / 1,258,399.24-1,736,617.60-685,438.04

Finding the Fourth Proportional to 1,258,399.24, 1,736,617.60 and 685,438.04

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Solution

The fourth proportional to 1,258,399.24, 1,736,617.60 and 685,438.04 is: 945,919.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,399.24 : 1,736,617.60 = 685,438.04 : x
  2. Step 2: Convert to fraction form
    1,258,399.24/1,736,617.60 = 685,438.04/x
  3. Step 3: Cross multiply
    1,258,399.24x = 1,736,617.60 × 685,438.04
  4. Step 4: Simplify right side
    1,258,399.24x = 1,190,343,763,973.50
  5. Step 5: Solve for x
    x = 1,190,343,763,973.50/1,258,399.24
  6. Step 6: Final answer
    x = 945,919.01

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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.