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Finding the Fourth Proportional to 495,785.51, 683,932.21 and 323,804.15

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Solution

The fourth proportional to 495,785.51, 683,932.21 and 323,804.15 is: 446,685.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,785.51 : 683,932.21 = 323,804.15 : x
  2. Step 2: Convert to fraction form
    495,785.51/683,932.21 = 323,804.15/x
  3. Step 3: Cross multiply
    495,785.51x = 683,932.21 × 323,804.15
  4. Step 4: Simplify right side
    495,785.51x = 221,460,086,252.25
  5. Step 5: Solve for x
    x = 221,460,086,252.25/495,785.51
  6. Step 6: Final answer
    x = 446,685.27

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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.