Home / 859,998.40-1,289,997.60-544,811.20

Finding the Fourth Proportional to 859,998.40, 1,289,997.60 and 544,811.20

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Solution

The fourth proportional to 859,998.40, 1,289,997.60 and 544,811.20 is: 817,216.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,998.40 : 1,289,997.60 = 544,811.20 : x
  2. Step 2: Convert to fraction form
    859,998.40/1,289,997.60 = 544,811.20/x
  3. Step 3: Cross multiply
    859,998.40x = 1,289,997.60 × 544,811.20
  4. Step 4: Simplify right side
    859,998.40x = 702,805,140,453.12
  5. Step 5: Solve for x
    x = 702,805,140,453.12/859,998.40
  6. Step 6: Final answer
    x = 817,216.80

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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.