Home / 1,188,200.70-1,782,284.85-389,508.30

Finding the Fourth Proportional to 1,188,200.70, 1,782,284.85 and 389,508.30

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Solution

The fourth proportional to 1,188,200.70, 1,782,284.85 and 389,508.30 is: 584,257.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,200.70 : 1,782,284.85 = 389,508.30 : x
  2. Step 2: Convert to fraction form
    1,188,200.70/1,782,284.85 = 389,508.30/x
  3. Step 3: Cross multiply
    1,188,200.70x = 1,782,284.85 × 389,508.30
  4. Step 4: Simplify right side
    1,188,200.70x = 694,214,742,039.26
  5. Step 5: Solve for x
    x = 694,214,742,039.26/1,188,200.70
  6. Step 6: Final answer
    x = 584,257.14

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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.