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Finding the Fourth Proportional to 336,306.50, 463,840.40 and 215,458.96

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Solution

The fourth proportional to 336,306.50, 463,840.40 and 215,458.96 is: 297,165.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,306.50 : 463,840.40 = 215,458.96 : x
  2. Step 2: Convert to fraction form
    336,306.50/463,840.40 = 215,458.96/x
  3. Step 3: Cross multiply
    336,306.50x = 463,840.40 × 215,458.96
  4. Step 4: Simplify right side
    336,306.50x = 99,938,570,189.98
  5. Step 5: Solve for x
    x = 99,938,570,189.98/336,306.50
  6. Step 6: Final answer
    x = 297,165.15

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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.