Home / 1,196,195.70-1,650,786.93-687,000.18

Finding the Fourth Proportional to 1,196,195.70, 1,650,786.93 and 687,000.18

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Solution

The fourth proportional to 1,196,195.70, 1,650,786.93 and 687,000.18 is: 948,081.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,196,195.70 : 1,650,786.93 = 687,000.18 : x
  2. Step 2: Convert to fraction form
    1,196,195.70/1,650,786.93 = 687,000.18/x
  3. Step 3: Cross multiply
    1,196,195.70x = 1,650,786.93 × 687,000.18
  4. Step 4: Simplify right side
    1,196,195.70x = 1,134,090,918,051.65
  5. Step 5: Solve for x
    x = 1,134,090,918,051.65/1,196,195.70
  6. Step 6: Final answer
    x = 948,081.42

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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.