Home / 864,065.80-1,296,098.70-685,606.60

Finding the Fourth Proportional to 864,065.80, 1,296,098.70 and 685,606.60

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Solution

The fourth proportional to 864,065.80, 1,296,098.70 and 685,606.60 is: 1,028,409.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    864,065.80 : 1,296,098.70 = 685,606.60 : x
  2. Step 2: Convert to fraction form
    864,065.80/1,296,098.70 = 685,606.60/x
  3. Step 3: Cross multiply
    864,065.80x = 1,296,098.70 × 685,606.60
  4. Step 4: Simplify right side
    864,065.80x = 888,613,822,971.42
  5. Step 5: Solve for x
    x = 888,613,822,971.42/864,065.80
  6. Step 6: Final answer
    x = 1,028,409.90

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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.