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Finding the Fourth Proportional to 394,671.40, 592,007.10 and 274,402.60

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Solution

The fourth proportional to 394,671.40, 592,007.10 and 274,402.60 is: 411,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    394,671.40 : 592,007.10 = 274,402.60 : x
  2. Step 2: Convert to fraction form
    394,671.40/592,007.10 = 274,402.60/x
  3. Step 3: Cross multiply
    394,671.40x = 592,007.10 × 274,402.60
  4. Step 4: Simplify right side
    394,671.40x = 162,448,287,458.46
  5. Step 5: Solve for x
    x = 162,448,287,458.46/394,671.40
  6. Step 6: Final answer
    x = 411,603.90

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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.