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Finding the Fourth Proportional to 607,749.36, 911,782.44 and 341,706.48

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Solution

The fourth proportional to 607,749.36, 911,782.44 and 341,706.48 is: 512,648.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,749.36 : 911,782.44 = 341,706.48 : x
  2. Step 2: Convert to fraction form
    607,749.36/911,782.44 = 341,706.48/x
  3. Step 3: Cross multiply
    607,749.36x = 911,782.44 × 341,706.48
  4. Step 4: Simplify right side
    607,749.36x = 311,561,968,098.21
  5. Step 5: Solve for x
    x = 311,561,968,098.21/607,749.36
  6. Step 6: Final answer
    x = 512,648.78

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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.