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Finding the Fourth Proportional to 574,634.40, 792,615.49 and 359,400.80

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Solution

The fourth proportional to 574,634.40, 792,615.49 and 359,400.80 is: 495,735.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,634.40 : 792,615.49 = 359,400.80 : x
  2. Step 2: Convert to fraction form
    574,634.40/792,615.49 = 359,400.80/x
  3. Step 3: Cross multiply
    574,634.40x = 792,615.49 × 359,400.80
  4. Step 4: Simplify right side
    574,634.40x = 284,866,636,336.81
  5. Step 5: Solve for x
    x = 284,866,636,336.81/574,634.40
  6. Step 6: Final answer
    x = 495,735.44

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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.