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Finding the Fourth Proportional to 519,953.85, 779,414.10 and 361,850.16

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Solution

The fourth proportional to 519,953.85, 779,414.10 and 361,850.16 is: 542,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,953.85 : 779,414.10 = 361,850.16 : x
  2. Step 2: Convert to fraction form
    519,953.85/779,414.10 = 361,850.16/x
  3. Step 3: Cross multiply
    519,953.85x = 779,414.10 × 361,850.16
  4. Step 4: Simplify right side
    519,953.85x = 282,031,116,791.26
  5. Step 5: Solve for x
    x = 282,031,116,791.26/519,953.85
  6. Step 6: Final answer
    x = 542,415.67

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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.