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Finding the Fourth Proportional to 543,870.02, 815,720.78 and 277,827.14

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Solution

The fourth proportional to 543,870.02, 815,720.78 and 277,827.14 is: 416,697.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,870.02 : 815,720.78 = 277,827.14 : x
  2. Step 2: Convert to fraction form
    543,870.02/815,720.78 = 277,827.14/x
  3. Step 3: Cross multiply
    543,870.02x = 815,720.78 × 277,827.14
  4. Step 4: Simplify right side
    543,870.02x = 226,629,367,961.93
  5. Step 5: Solve for x
    x = 226,629,367,961.93/543,870.02
  6. Step 6: Final answer
    x = 416,697.67

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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.