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Finding the Fourth Proportional to 543,696.10, 815,544.15 and 228,768.10

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Solution

The fourth proportional to 543,696.10, 815,544.15 and 228,768.10 is: 343,152.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,696.10 : 815,544.15 = 228,768.10 : x
  2. Step 2: Convert to fraction form
    543,696.10/815,544.15 = 228,768.10/x
  3. Step 3: Cross multiply
    543,696.10x = 815,544.15 × 228,768.10
  4. Step 4: Simplify right side
    543,696.10x = 186,570,485,661.62
  5. Step 5: Solve for x
    x = 186,570,485,661.62/543,696.10
  6. Step 6: Final answer
    x = 343,152.15

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Similar ratio
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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.