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Finding the Fourth Proportional to 517,743, 775,492.70 and 250,945.38

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Solution

The fourth proportional to 517,743, 775,492.70 and 250,945.38 is: 375,874.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,743 : 775,492.70 = 250,945.38 : x
  2. Step 2: Convert to fraction form
    517,743/775,492.70 = 250,945.38/x
  3. Step 3: Cross multiply
    517,743x = 775,492.70 × 250,945.38
  4. Step 4: Simplify right side
    517,743x = 194,606,309,034.00
  5. Step 5: Solve for x
    x = 194,606,309,034.00/517,743
  6. Step 6: Final answer
    x = 375,874.34

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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.