Home / 814,511.40-1,123,739.87-470,337.54

Finding the Fourth Proportional to 814,511.40, 1,123,739.87 and 470,337.54

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Solution

The fourth proportional to 814,511.40, 1,123,739.87 and 470,337.54 is: 648,900.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,511.40 : 1,123,739.87 = 470,337.54 : x
  2. Step 2: Convert to fraction form
    814,511.40/1,123,739.87 = 470,337.54/x
  3. Step 3: Cross multiply
    814,511.40x = 1,123,739.87 × 470,337.54
  4. Step 4: Simplify right side
    814,511.40x = 528,537,043,704.03
  5. Step 5: Solve for x
    x = 528,537,043,704.03/814,511.40
  6. Step 6: Final answer
    x = 648,900.73

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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.