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Finding the Fourth Proportional to 587,409.12, 810,574.20 and 325,771.92

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Solution

The fourth proportional to 587,409.12, 810,574.20 and 325,771.92 is: 449,537.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,409.12 : 810,574.20 = 325,771.92 : x
  2. Step 2: Convert to fraction form
    587,409.12/810,574.20 = 325,771.92/x
  3. Step 3: Cross multiply
    587,409.12x = 810,574.20 × 325,771.92
  4. Step 4: Simplify right side
    587,409.12x = 264,062,313,436.46
  5. Step 5: Solve for x
    x = 264,062,313,436.46/587,409.12
  6. Step 6: Final answer
    x = 449,537.31

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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.