Home / 876,409.28-1,209,481.44-554,003.36

Finding the Fourth Proportional to 876,409.28, 1,209,481.44 and 554,003.36

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Solution

The fourth proportional to 876,409.28, 1,209,481.44 and 554,003.36 is: 764,547.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,409.28 : 1,209,481.44 = 554,003.36 : x
  2. Step 2: Convert to fraction form
    876,409.28/1,209,481.44 = 554,003.36/x
  3. Step 3: Cross multiply
    876,409.28x = 1,209,481.44 × 554,003.36
  4. Step 4: Simplify right side
    876,409.28x = 670,056,781,617.64
  5. Step 5: Solve for x
    x = 670,056,781,617.64/876,409.28
  6. Step 6: Final answer
    x = 764,547.79

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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.