Home / 1,638,619.88-2,457,929.81-516,688.88

Finding the Fourth Proportional to 1,638,619.88, 2,457,929.81 and 516,688.88

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Solution

The fourth proportional to 1,638,619.88, 2,457,929.81 and 516,688.88 is: 775,033.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,619.88 : 2,457,929.81 = 516,688.88 : x
  2. Step 2: Convert to fraction form
    1,638,619.88/2,457,929.81 = 516,688.88/x
  3. Step 3: Cross multiply
    1,638,619.88x = 2,457,929.81 × 516,688.88
  4. Step 4: Simplify right side
    1,638,619.88x = 1,269,984,989,649.59
  5. Step 5: Solve for x
    x = 1,269,984,989,649.59/1,638,619.88
  6. Step 6: Final answer
    x = 775,033.31

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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.