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Finding the Fourth Proportional to 495,568.80, 683,885.76 and 269,214.48

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Solution

The fourth proportional to 495,568.80, 683,885.76 and 269,214.48 is: 371,516.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,568.80 : 683,885.76 = 269,214.48 : x
  2. Step 2: Convert to fraction form
    495,568.80/683,885.76 = 269,214.48/x
  3. Step 3: Cross multiply
    495,568.80x = 683,885.76 × 269,214.48
  4. Step 4: Simplify right side
    495,568.80x = 184,111,949,257.81
  5. Step 5: Solve for x
    x = 184,111,949,257.81/495,568.80
  6. Step 6: Final answer
    x = 371,516.43

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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.