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Finding the Fourth Proportional to 345,880.51, 477,315.75 and 192,928.60

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Solution

The fourth proportional to 345,880.51, 477,315.75 and 192,928.60 is: 266,241.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,880.51 : 477,315.75 = 192,928.60 : x
  2. Step 2: Convert to fraction form
    345,880.51/477,315.75 = 192,928.60/x
  3. Step 3: Cross multiply
    345,880.51x = 477,315.75 × 192,928.60
  4. Step 4: Simplify right side
    345,880.51x = 92,087,860,725.58
  5. Step 5: Solve for x
    x = 92,087,860,725.58/345,880.51
  6. Step 6: Final answer
    x = 266,241.83

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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.