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Finding the Fourth Proportional to 622,933.60, 874,469 and 622,933.60

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Solution

The fourth proportional to 622,933.60, 874,469 and 622,933.60 is: 874,469

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,933.60 : 874,469 = 622,933.60 : x
  2. Step 2: Convert to fraction form
    622,933.60/874,469 = 622,933.60/x
  3. Step 3: Cross multiply
    622,933.60x = 874,469 × 622,933.60
  4. Step 4: Simplify right side
    622,933.60x = 544,736,122,258.40
  5. Step 5: Solve for x
    x = 544,736,122,258.40/622,933.60
  6. Step 6: Final answer
    x = 874,469

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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.