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Finding the Fourth Proportional to 345,778.32, 477,182.54 and 192,815.03

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Solution

The fourth proportional to 345,778.32, 477,182.54 and 192,815.03 is: 266,089.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,778.32 : 477,182.54 = 192,815.03 : x
  2. Step 2: Convert to fraction form
    345,778.32/477,182.54 = 192,815.03/x
  3. Step 3: Cross multiply
    345,778.32x = 477,182.54 × 192,815.03
  4. Step 4: Simplify right side
    345,778.32x = 92,007,967,440.57
  5. Step 5: Solve for x
    x = 92,007,967,440.57/345,778.32
  6. Step 6: Final answer
    x = 266,089.46

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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.