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Finding the Fourth Proportional to 416,296.80, 624,736.80 and 266,900.40

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Solution

The fourth proportional to 416,296.80, 624,736.80 and 266,900.40 is: 400,537.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,296.80 : 624,736.80 = 266,900.40 : x
  2. Step 2: Convert to fraction form
    416,296.80/624,736.80 = 266,900.40/x
  3. Step 3: Cross multiply
    416,296.80x = 624,736.80 × 266,900.40
  4. Step 4: Simplify right side
    416,296.80x = 166,742,501,814.72
  5. Step 5: Solve for x
    x = 166,742,501,814.72/416,296.80
  6. Step 6: Final answer
    x = 400,537.55

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1.5x scale

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.