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Finding the Fourth Proportional to 504,745.32, 757,454.67 and 261,810.28

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Solution

The fourth proportional to 504,745.32, 757,454.67 and 261,810.28 is: 392,890.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,745.32 : 757,454.67 = 261,810.28 : x
  2. Step 2: Convert to fraction form
    504,745.32/757,454.67 = 261,810.28/x
  3. Step 3: Cross multiply
    504,745.32x = 757,454.67 × 261,810.28
  4. Step 4: Simplify right side
    504,745.32x = 198,309,421,580.83
  5. Step 5: Solve for x
    x = 198,309,421,580.83/504,745.32
  6. Step 6: Final answer
    x = 392,890.07

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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.