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Finding the Fourth Proportional to 507,112.50, 699,812.70 and 277,665.63

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Solution

The fourth proportional to 507,112.50, 699,812.70 and 277,665.63 is: 383,177.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,112.50 : 699,812.70 = 277,665.63 : x
  2. Step 2: Convert to fraction form
    507,112.50/699,812.70 = 277,665.63/x
  3. Step 3: Cross multiply
    507,112.50x = 699,812.70 × 277,665.63
  4. Step 4: Simplify right side
    507,112.50x = 194,313,930,561.96
  5. Step 5: Solve for x
    x = 194,313,930,561.96/507,112.50
  6. Step 6: Final answer
    x = 383,177.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.