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Finding the Fourth Proportional to 366,971.80, 550,457.70 and 310,984.60

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Solution

The fourth proportional to 366,971.80, 550,457.70 and 310,984.60 is: 466,476.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,971.80 : 550,457.70 = 310,984.60 : x
  2. Step 2: Convert to fraction form
    366,971.80/550,457.70 = 310,984.60/x
  3. Step 3: Cross multiply
    366,971.80x = 550,457.70 × 310,984.60
  4. Step 4: Simplify right side
    366,971.80x = 171,183,867,651.42
  5. Step 5: Solve for x
    x = 171,183,867,651.42/366,971.80
  6. Step 6: Final answer
    x = 466,476.90

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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.