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Finding the Fourth Proportional to 276,503.60, 414,755.40 and 192,085.40

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Solution

The fourth proportional to 276,503.60, 414,755.40 and 192,085.40 is: 288,128.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,503.60 : 414,755.40 = 192,085.40 : x
  2. Step 2: Convert to fraction form
    276,503.60/414,755.40 = 192,085.40/x
  3. Step 3: Cross multiply
    276,503.60x = 414,755.40 × 192,085.40
  4. Step 4: Simplify right side
    276,503.60x = 79,668,456,911.16
  5. Step 5: Solve for x
    x = 79,668,456,911.16/276,503.60
  6. Step 6: Final answer
    x = 288,128.10

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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.