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Finding the Fourth Proportional to 463,332.80, 694,999.20 and 285,262.40

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Solution

The fourth proportional to 463,332.80, 694,999.20 and 285,262.40 is: 427,893.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,332.80 : 694,999.20 = 285,262.40 : x
  2. Step 2: Convert to fraction form
    463,332.80/694,999.20 = 285,262.40/x
  3. Step 3: Cross multiply
    463,332.80x = 694,999.20 × 285,262.40
  4. Step 4: Simplify right side
    463,332.80x = 198,257,139,790.08
  5. Step 5: Solve for x
    x = 198,257,139,790.08/463,332.80
  6. Step 6: Final answer
    x = 427,893.60

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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.