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Finding the Fourth Proportional to 406,286.48, 560,858.74 and 261,302.96

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Solution

The fourth proportional to 406,286.48, 560,858.74 and 261,302.96 is: 360,716.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,286.48 : 560,858.74 = 261,302.96 : x
  2. Step 2: Convert to fraction form
    406,286.48/560,858.74 = 261,302.96/x
  3. Step 3: Cross multiply
    406,286.48x = 560,858.74 × 261,302.96
  4. Step 4: Simplify right side
    406,286.48x = 146,554,048,903.87
  5. Step 5: Solve for x
    x = 146,554,048,903.87/406,286.48
  6. Step 6: Final answer
    x = 360,716.04

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1.5x scale

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.