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Finding the Fourth Proportional to 1,133.70, 1,698.39 and 584.52

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Solution

The fourth proportional to 1,133.70, 1,698.39 and 584.52 is: 875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,133.70 : 1,698.39 = 584.52 : x
  2. Step 2: Convert to fraction form
    1,133.70/1,698.39 = 584.52/x
  3. Step 3: Cross multiply
    1,133.70x = 1,698.39 × 584.52
  4. Step 4: Simplify right side
    1,133.70x = 992,742.92
  5. Step 5: Solve for x
    x = 992,742.92/1,133.70
  6. Step 6: Final answer
    x = 875.67

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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.