Home / 1,664,636.47-2,297,263.48-939,509.28

Finding the Fourth Proportional to 1,664,636.47, 2,297,263.48 and 939,509.28

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Solution

The fourth proportional to 1,664,636.47, 2,297,263.48 and 939,509.28 is: 1,296,559.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,664,636.47 : 2,297,263.48 = 939,509.28 : x
  2. Step 2: Convert to fraction form
    1,664,636.47/2,297,263.48 = 939,509.28/x
  3. Step 3: Cross multiply
    1,664,636.47x = 2,297,263.48 × 939,509.28
  4. Step 4: Simplify right side
    1,664,636.47x = 2,158,300,355,716.32
  5. Step 5: Solve for x
    x = 2,158,300,355,716.32/1,664,636.47
  6. Step 6: Final answer
    x = 1,296,559.58

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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.