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Finding the Fourth Proportional to 341,078.03, 511,971.90 and 251,222.20

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Solution

The fourth proportional to 341,078.03, 511,971.90 and 251,222.20 is: 377,094.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    341,078.03 : 511,971.90 = 251,222.20 : x
  2. Step 2: Convert to fraction form
    341,078.03/511,971.90 = 251,222.20/x
  3. Step 3: Cross multiply
    341,078.03x = 511,971.90 × 251,222.20
  4. Step 4: Simplify right side
    341,078.03x = 128,618,707,056.18
  5. Step 5: Solve for x
    x = 128,618,707,056.18/341,078.03
  6. Step 6: Final answer
    x = 377,094.67

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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.