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Finding the Fourth Proportional to 495,673.80, 743,092.74 and 214,979.64

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Solution

The fourth proportional to 495,673.80, 743,092.74 and 214,979.64 is: 322,288.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,673.80 : 743,092.74 = 214,979.64 : x
  2. Step 2: Convert to fraction form
    495,673.80/743,092.74 = 214,979.64/x
  3. Step 3: Cross multiply
    495,673.80x = 743,092.74 × 214,979.64
  4. Step 4: Simplify right side
    495,673.80x = 159,749,809,731.81
  5. Step 5: Solve for x
    x = 159,749,809,731.81/495,673.80
  6. Step 6: Final answer
    x = 322,288.19

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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.