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Finding the Fourth Proportional to 484,624.40, 727,368.60 and 284,694.80

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Solution

The fourth proportional to 484,624.40, 727,368.60 and 284,694.80 is: 427,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,624.40 : 727,368.60 = 284,694.80 : x
  2. Step 2: Convert to fraction form
    484,624.40/727,368.60 = 284,694.80/x
  3. Step 3: Cross multiply
    484,624.40x = 727,368.60 × 284,694.80
  4. Step 4: Simplify right side
    484,624.40x = 207,078,058,103.28
  5. Step 5: Solve for x
    x = 207,078,058,103.28/484,624.40
  6. Step 6: Final answer
    x = 427,295.98

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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.