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Finding the Fourth Proportional to 469,496.04, 647,904.84 and 254,636.04

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Solution

The fourth proportional to 469,496.04, 647,904.84 and 254,636.04 is: 351,397.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    469,496.04 : 647,904.84 = 254,636.04 : x
  2. Step 2: Convert to fraction form
    469,496.04/647,904.84 = 254,636.04/x
  3. Step 3: Cross multiply
    469,496.04x = 647,904.84 × 254,636.04
  4. Step 4: Simplify right side
    469,496.04x = 164,979,922,754.43
  5. Step 5: Solve for x
    x = 164,979,922,754.43/469,496.04
  6. Step 6: Final answer
    x = 351,397.90

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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.