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Finding the Fourth Proportional to 345,860.79, 477,290.67 and 192,893.91

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Solution

The fourth proportional to 345,860.79, 477,290.67 and 192,893.91 is: 266,195.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,860.79 : 477,290.67 = 192,893.91 : x
  2. Step 2: Convert to fraction form
    345,860.79/477,290.67 = 192,893.91/x
  3. Step 3: Cross multiply
    345,860.79x = 477,290.67 × 192,893.91
  4. Step 4: Simplify right side
    345,860.79x = 92,066,463,542.82
  5. Step 5: Solve for x
    x = 92,066,463,542.82/345,860.79
  6. Step 6: Final answer
    x = 266,195.15

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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.