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Finding the Fourth Proportional to 528,147.54, 728,829.90 and 301,793.04

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Solution

The fourth proportional to 528,147.54, 728,829.90 and 301,793.04 is: 416,466.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,147.54 : 728,829.90 = 301,793.04 : x
  2. Step 2: Convert to fraction form
    528,147.54/728,829.90 = 301,793.04/x
  3. Step 3: Cross multiply
    528,147.54x = 728,829.90 × 301,793.04
  4. Step 4: Simplify right side
    528,147.54x = 219,955,791,163.90
  5. Step 5: Solve for x
    x = 219,955,791,163.90/528,147.54
  6. Step 6: Final answer
    x = 416,466.56

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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.