Home / 1,099,633.70-1,648,247.70-389,296.10

Finding the Fourth Proportional to 1,099,633.70, 1,648,247.70 and 389,296.10

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Solution

The fourth proportional to 1,099,633.70, 1,648,247.70 and 389,296.10 is: 583,518.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,099,633.70 : 1,648,247.70 = 389,296.10 : x
  2. Step 2: Convert to fraction form
    1,099,633.70/1,648,247.70 = 389,296.10/x
  3. Step 3: Cross multiply
    1,099,633.70x = 1,648,247.70 × 389,296.10
  4. Step 4: Simplify right side
    1,099,633.70x = 641,656,401,443.97
  5. Step 5: Solve for x
    x = 641,656,401,443.97/1,099,633.70
  6. Step 6: Final answer
    x = 583,518.31

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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.