Home / 867,173.94-1,196,669.52-479,990.12

Finding the Fourth Proportional to 867,173.94, 1,196,669.52 and 479,990.12

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Solution

The fourth proportional to 867,173.94, 1,196,669.52 and 479,990.12 is: 662,369.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    867,173.94 : 1,196,669.52 = 479,990.12 : x
  2. Step 2: Convert to fraction form
    867,173.94/1,196,669.52 = 479,990.12/x
  3. Step 3: Cross multiply
    867,173.94x = 1,196,669.52 × 479,990.12
  4. Step 4: Simplify right side
    867,173.94x = 574,389,543,554.58
  5. Step 5: Solve for x
    x = 574,389,543,554.58/867,173.94
  6. Step 6: Final answer
    x = 662,369.47

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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.