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Finding the Fourth Proportional to 456,445.72, 629,883.30 and 252,491.32

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Solution

The fourth proportional to 456,445.72, 629,883.30 and 252,491.32 is: 348,431.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,445.72 : 629,883.30 = 252,491.32 : x
  2. Step 2: Convert to fraction form
    456,445.72/629,883.30 = 252,491.32/x
  3. Step 3: Cross multiply
    456,445.72x = 629,883.30 × 252,491.32
  4. Step 4: Simplify right side
    456,445.72x = 159,040,065,862.96
  5. Step 5: Solve for x
    x = 159,040,065,862.96/456,445.72
  6. Step 6: Final answer
    x = 348,431.50

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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.