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Finding the Fourth Proportional to 519,466.22, 779,138.84 and 140,368.94

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Solution

The fourth proportional to 519,466.22, 779,138.84 and 140,368.94 is: 210,537.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,466.22 : 779,138.84 = 140,368.94 : x
  2. Step 2: Convert to fraction form
    519,466.22/779,138.84 = 140,368.94/x
  3. Step 3: Cross multiply
    519,466.22x = 779,138.84 × 140,368.94
  4. Step 4: Simplify right side
    519,466.22x = 109,366,893,083.63
  5. Step 5: Solve for x
    x = 109,366,893,083.63/519,466.22
  6. Step 6: Final answer
    x = 210,537.06

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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.