Home / 543,686.14-815,629.60-178,968.36

Finding the Fourth Proportional to 543,686.14, 815,629.60 and 178,968.36

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Solution

The fourth proportional to 543,686.14, 815,629.60 and 178,968.36 is: 268,485.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,686.14 : 815,629.60 = 178,968.36 : x
  2. Step 2: Convert to fraction form
    543,686.14/815,629.60 = 178,968.36/x
  3. Step 3: Cross multiply
    543,686.14x = 815,629.60 × 178,968.36
  4. Step 4: Simplify right side
    543,686.14x = 145,971,891,879.46
  5. Step 5: Solve for x
    x = 145,971,891,879.46/543,686.14
  6. Step 6: Final answer
    x = 268,485.59

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1.5x scale

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.