Home / 5,438,859.11-7,505,767.58-2,991,534.40

Finding the Fourth Proportional to 5,438,859.11, 7,505,767.58 and 2,991,534.40

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Solution

The fourth proportional to 5,438,859.11, 7,505,767.58 and 2,991,534.40 is: 4,128,395.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,438,859.11 : 7,505,767.58 = 2,991,534.40 : x
  2. Step 2: Convert to fraction form
    5,438,859.11/7,505,767.58 = 2,991,534.40/x
  3. Step 3: Cross multiply
    5,438,859.11x = 7,505,767.58 × 2,991,534.40
  4. Step 4: Simplify right side
    5,438,859.11x = 22,453,761,916,737.98
  5. Step 5: Solve for x
    x = 22,453,761,916,737.98/5,438,859.11
  6. Step 6: Final answer
    x = 4,128,395.58

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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.