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Finding the Fourth Proportional to 437,995.38, 656,140.94 and 287,779.26

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Solution

The fourth proportional to 437,995.38, 656,140.94 and 287,779.26 is: 431,109.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,995.38 : 656,140.94 = 287,779.26 : x
  2. Step 2: Convert to fraction form
    437,995.38/656,140.94 = 287,779.26/x
  3. Step 3: Cross multiply
    437,995.38x = 656,140.94 × 287,779.26
  4. Step 4: Simplify right side
    437,995.38x = 188,823,749,449.30
  5. Step 5: Solve for x
    x = 188,823,749,449.30/437,995.38
  6. Step 6: Final answer
    x = 431,109.00

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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.