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Finding the Fourth Proportional to 519,970.44, 779,955.90 and 187,546.44

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Solution

The fourth proportional to 519,970.44, 779,955.90 and 187,546.44 is: 281,319.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,970.44 : 779,955.90 = 187,546.44 : x
  2. Step 2: Convert to fraction form
    519,970.44/779,955.90 = 187,546.44/x
  3. Step 3: Cross multiply
    519,970.44x = 779,955.90 × 187,546.44
  4. Step 4: Simplify right side
    519,970.44x = 146,277,952,402.00
  5. Step 5: Solve for x
    x = 146,277,952,402.00/519,970.44
  6. Step 6: Final answer
    x = 281,319.75

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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.