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Finding the Fourth Proportional to 336,631.60, 504,072.60 and 266,064.40

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Solution

The fourth proportional to 336,631.60, 504,072.60 and 266,064.40 is: 398,405.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,631.60 : 504,072.60 = 266,064.40 : x
  2. Step 2: Convert to fraction form
    336,631.60/504,072.60 = 266,064.40/x
  3. Step 3: Cross multiply
    336,631.60x = 504,072.60 × 266,064.40
  4. Step 4: Simplify right side
    336,631.60x = 134,115,773,875.44
  5. Step 5: Solve for x
    x = 134,115,773,875.44/336,631.60
  6. Step 6: Final answer
    x = 398,405.18

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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.