Home / 685,710.29-1,028,633.07-236,372.01

Finding the Fourth Proportional to 685,710.29, 1,028,633.07 and 236,372.01

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Solution

The fourth proportional to 685,710.29, 1,028,633.07 and 236,372.01 is: 354,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,710.29 : 1,028,633.07 = 236,372.01 : x
  2. Step 2: Convert to fraction form
    685,710.29/1,028,633.07 = 236,372.01/x
  3. Step 3: Cross multiply
    685,710.29x = 1,028,633.07 × 236,372.01
  4. Step 4: Simplify right side
    685,710.29x = 243,140,066,308.37
  5. Step 5: Solve for x
    x = 243,140,066,308.37/685,710.29
  6. Step 6: Final answer
    x = 354,581.33

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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.