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Finding the Fourth Proportional to 325,433.64, 448,782.90 and 253,787.52

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Solution

The fourth proportional to 325,433.64, 448,782.90 and 253,787.52 is: 349,980.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,433.64 : 448,782.90 = 253,787.52 : x
  2. Step 2: Convert to fraction form
    325,433.64/448,782.90 = 253,787.52/x
  3. Step 3: Cross multiply
    325,433.64x = 448,782.90 × 253,787.52
  4. Step 4: Simplify right side
    325,433.64x = 113,895,499,209.41
  5. Step 5: Solve for x
    x = 113,895,499,209.41/325,433.64
  6. Step 6: Final answer
    x = 349,980.72

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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.