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Finding the Fourth Proportional to 622,163.60, 933,245.40 and 385,773.20

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Solution

The fourth proportional to 622,163.60, 933,245.40 and 385,773.20 is: 578,659.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,163.60 : 933,245.40 = 385,773.20 : x
  2. Step 2: Convert to fraction form
    622,163.60/933,245.40 = 385,773.20/x
  3. Step 3: Cross multiply
    622,163.60x = 933,245.40 × 385,773.20
  4. Step 4: Simplify right side
    622,163.60x = 360,021,064,343.28
  5. Step 5: Solve for x
    x = 360,021,064,343.28/622,163.60
  6. Step 6: Final answer
    x = 578,659.80

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1.5x scale

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.