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Finding the Fourth Proportional to 886,220.66, 1,222,978.26 and 483,812.66

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Solution

The fourth proportional to 886,220.66, 1,222,978.26 and 483,812.66 is: 667,658.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    886,220.66 : 1,222,978.26 = 483,812.66 : x
  2. Step 2: Convert to fraction form
    886,220.66/1,222,978.26 = 483,812.66/x
  3. Step 3: Cross multiply
    886,220.66x = 1,222,978.26 × 483,812.66
  4. Step 4: Simplify right side
    886,220.66x = 591,692,365,092.77
  5. Step 5: Solve for x
    x = 591,692,365,092.77/886,220.66
  6. Step 6: Final answer
    x = 667,658.06

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1.5x scale

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.