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Finding the Fourth Proportional to 274,316.40, 411,474.60 and 272,566.80

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Solution

The fourth proportional to 274,316.40, 411,474.60 and 272,566.80 is: 408,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,316.40 : 411,474.60 = 272,566.80 : x
  2. Step 2: Convert to fraction form
    274,316.40/411,474.60 = 272,566.80/x
  3. Step 3: Cross multiply
    274,316.40x = 411,474.60 × 272,566.80
  4. Step 4: Simplify right side
    274,316.40x = 112,154,315,003.28
  5. Step 5: Solve for x
    x = 112,154,315,003.28/274,316.40
  6. Step 6: Final answer
    x = 408,850.20

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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.