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Finding the Fourth Proportional to 483,071.85, 667,800.45 and 368,910.45

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Solution

The fourth proportional to 483,071.85, 667,800.45 and 368,910.45 is: 509,983.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,071.85 : 667,800.45 = 368,910.45 : x
  2. Step 2: Convert to fraction form
    483,071.85/667,800.45 = 368,910.45/x
  3. Step 3: Cross multiply
    483,071.85x = 667,800.45 × 368,910.45
  4. Step 4: Simplify right side
    483,071.85x = 246,358,564,519.70
  5. Step 5: Solve for x
    x = 246,358,564,519.70/483,071.85
  6. Step 6: Final answer
    x = 509,983.28

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1.5x scale

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.