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Finding the Fourth Proportional to 664,999.85, 933,361.75 and 664,999.85

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Solution

The fourth proportional to 664,999.85, 933,361.75 and 664,999.85 is: 933,361.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,999.85 : 933,361.75 = 664,999.85 : x
  2. Step 2: Convert to fraction form
    664,999.85/933,361.75 = 664,999.85/x
  3. Step 3: Cross multiply
    664,999.85x = 933,361.75 × 664,999.85
  4. Step 4: Simplify right side
    664,999.85x = 620,685,423,745.74
  5. Step 5: Solve for x
    x = 620,685,423,745.74/664,999.85
  6. Step 6: Final answer
    x = 933,361.75

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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.