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Finding the Fourth Proportional to 372,245.40, 558,368.10 and 334,920.60

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Solution

The fourth proportional to 372,245.40, 558,368.10 and 334,920.60 is: 502,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,245.40 : 558,368.10 = 334,920.60 : x
  2. Step 2: Convert to fraction form
    372,245.40/558,368.10 = 334,920.60/x
  3. Step 3: Cross multiply
    372,245.40x = 558,368.10 × 334,920.60
  4. Step 4: Simplify right side
    372,245.40x = 187,008,979,072.86
  5. Step 5: Solve for x
    x = 187,008,979,072.86/372,245.40
  6. Step 6: Final answer
    x = 502,380.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.