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Finding the Fourth Proportional to 345,699.72, 477,045.72 and 192,732.84

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Solution

The fourth proportional to 345,699.72, 477,045.72 and 192,732.84 is: 265,960.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,699.72 : 477,045.72 = 192,732.84 : x
  2. Step 2: Convert to fraction form
    345,699.72/477,045.72 = 192,732.84/x
  3. Step 3: Cross multiply
    345,699.72x = 477,045.72 × 192,732.84
  4. Step 4: Simplify right side
    345,699.72x = 91,942,376,425.44
  5. Step 5: Solve for x
    x = 91,942,376,425.44/345,699.72
  6. Step 6: Final answer
    x = 265,960.23

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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.