Home / 629,857.37-868,928.82-400,291.62

Finding the Fourth Proportional to 629,857.37, 868,928.82 and 400,291.62

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Solution

The fourth proportional to 629,857.37, 868,928.82 and 400,291.62 is: 552,228.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,857.37 : 868,928.82 = 400,291.62 : x
  2. Step 2: Convert to fraction form
    629,857.37/868,928.82 = 400,291.62/x
  3. Step 3: Cross multiply
    629,857.37x = 868,928.82 × 400,291.62
  4. Step 4: Simplify right side
    629,857.37x = 347,824,925,150.64
  5. Step 5: Solve for x
    x = 347,824,925,150.64/629,857.37
  6. Step 6: Final answer
    x = 552,228.08

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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.