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Finding the Fourth Proportional to 3,470.99, 5,206.49 and 873.93

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Solution

The fourth proportional to 3,470.99, 5,206.49 and 873.93 is: 1,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.99 : 5,206.49 = 873.93 : x
  2. Step 2: Convert to fraction form
    3,470.99/5,206.49 = 873.93/x
  3. Step 3: Cross multiply
    3,470.99x = 5,206.49 × 873.93
  4. Step 4: Simplify right side
    3,470.99x = 4,550,107.81
  5. Step 5: Solve for x
    x = 4,550,107.81/3,470.99
  6. Step 6: Final answer
    x = 1,310.90

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1.5x scale

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.