Home / 685,409.19-1,028,182.64-236,070.87

Finding the Fourth Proportional to 685,409.19, 1,028,182.64 and 236,070.87

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Solution

The fourth proportional to 685,409.19, 1,028,182.64 and 236,070.87 is: 354,130.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    685,409.19 : 1,028,182.64 = 236,070.87 : x
  2. Step 2: Convert to fraction form
    685,409.19/1,028,182.64 = 236,070.87/x
  3. Step 3: Cross multiply
    685,409.19x = 1,028,182.64 × 236,070.87
  4. Step 4: Simplify right side
    685,409.19x = 242,723,969,163.34
  5. Step 5: Solve for x
    x = 242,723,969,163.34/685,409.19
  6. Step 6: Final answer
    x = 354,130.02

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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.