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Finding the Fourth Proportional to 335,311.40, 502,967.10 and 297,986.60

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Solution

The fourth proportional to 335,311.40, 502,967.10 and 297,986.60 is: 446,979.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,311.40 : 502,967.10 = 297,986.60 : x
  2. Step 2: Convert to fraction form
    335,311.40/502,967.10 = 297,986.60/x
  3. Step 3: Cross multiply
    335,311.40x = 502,967.10 × 297,986.60
  4. Step 4: Simplify right side
    335,311.40x = 149,877,456,040.86
  5. Step 5: Solve for x
    x = 149,877,456,040.86/335,311.40
  6. Step 6: Final answer
    x = 446,979.90

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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.