Home / 1,258,697.30-1,736,997.09-685,735.70

Finding the Fourth Proportional to 1,258,697.30, 1,736,997.09 and 685,735.70

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Solution

The fourth proportional to 1,258,697.30, 1,736,997.09 and 685,735.70 is: 946,312.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,258,697.30 : 1,736,997.09 = 685,735.70 : x
  2. Step 2: Convert to fraction form
    1,258,697.30/1,736,997.09 = 685,735.70/x
  3. Step 3: Cross multiply
    1,258,697.30x = 1,736,997.09 × 685,735.70
  4. Step 4: Simplify right side
    1,258,697.30x = 1,191,120,915,409.11
  5. Step 5: Solve for x
    x = 1,191,120,915,409.11/1,258,697.30
  6. Step 6: Final answer
    x = 946,312.44

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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.