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Finding the Fourth Proportional to 495,402.48, 683,659.44 and 269,049.60

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Solution

The fourth proportional to 495,402.48, 683,659.44 and 269,049.60 is: 371,290.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,402.48 : 683,659.44 = 269,049.60 : x
  2. Step 2: Convert to fraction form
    495,402.48/683,659.44 = 269,049.60/x
  3. Step 3: Cross multiply
    495,402.48x = 683,659.44 × 269,049.60
  4. Step 4: Simplify right side
    495,402.48x = 183,938,298,868.22
  5. Step 5: Solve for x
    x = 183,938,298,868.22/495,402.48
  6. Step 6: Final answer
    x = 371,290.63

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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.