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Finding the Fourth Proportional to 622,355.60, 869,431.60 and 622,355.60

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Solution

The fourth proportional to 622,355.60, 869,431.60 and 622,355.60 is: 869,431.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,355.60 : 869,431.60 = 622,355.60 : x
  2. Step 2: Convert to fraction form
    622,355.60/869,431.60 = 622,355.60/x
  3. Step 3: Cross multiply
    622,355.60x = 869,431.60 × 622,355.60
  4. Step 4: Simplify right side
    622,355.60x = 541,095,625,076.96
  5. Step 5: Solve for x
    x = 541,095,625,076.96/622,355.60
  6. Step 6: Final answer
    x = 869,431.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.