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Finding the Fourth Proportional to 345,858.40, 477,274.88 and 192,901.20

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Solution

The fourth proportional to 345,858.40, 477,274.88 and 192,901.20 is: 266,198.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,858.40 : 477,274.88 = 192,901.20 : x
  2. Step 2: Convert to fraction form
    345,858.40/477,274.88 = 192,901.20/x
  3. Step 3: Cross multiply
    345,858.40x = 477,274.88 × 192,901.20
  4. Step 4: Simplify right side
    345,858.40x = 92,066,897,081.86
  5. Step 5: Solve for x
    x = 92,066,897,081.86/345,858.40
  6. Step 6: Final answer
    x = 266,198.24

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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.