Home / 298,280.07-411,619.68-162,314.37

Finding the Fourth Proportional to 298,280.07, 411,619.68 and 162,314.37

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Solution

The fourth proportional to 298,280.07, 411,619.68 and 162,314.37 is: 223,990.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,280.07 : 411,619.68 = 162,314.37 : x
  2. Step 2: Convert to fraction form
    298,280.07/411,619.68 = 162,314.37/x
  3. Step 3: Cross multiply
    298,280.07x = 411,619.68 × 162,314.37
  4. Step 4: Simplify right side
    298,280.07x = 66,811,789,038.80
  5. Step 5: Solve for x
    x = 66,811,789,038.80/298,280.07
  6. Step 6: Final answer
    x = 223,990.12

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1.5x scale

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.