Home / 1,909,489.85-2,642,035.01-1,664,984.12

Finding the Fourth Proportional to 1,909,489.85, 2,642,035.01 and 1,664,984.12

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Solution

The fourth proportional to 1,909,489.85, 2,642,035.01 and 1,664,984.12 is: 2,303,728.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,909,489.85 : 2,642,035.01 = 1,664,984.12 : x
  2. Step 2: Convert to fraction form
    1,909,489.85/2,642,035.01 = 1,664,984.12/x
  3. Step 3: Cross multiply
    1,909,489.85x = 2,642,035.01 × 1,664,984.12
  4. Step 4: Simplify right side
    1,909,489.85x = 4,398,946,314,598.95
  5. Step 5: Solve for x
    x = 4,398,946,314,598.95/1,909,489.85
  6. Step 6: Final answer
    x = 2,303,728.56

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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.