Home / 872,539.20-1,305,698.40-605,044.80

Finding the Fourth Proportional to 872,539.20, 1,305,698.40 and 605,044.80

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Solution

The fourth proportional to 872,539.20, 1,305,698.40 and 605,044.80 is: 905,410.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,539.20 : 1,305,698.40 = 605,044.80 : x
  2. Step 2: Convert to fraction form
    872,539.20/1,305,698.40 = 605,044.80/x
  3. Step 3: Cross multiply
    872,539.20x = 1,305,698.40 × 605,044.80
  4. Step 4: Simplify right side
    872,539.20x = 790,006,027,288.32
  5. Step 5: Solve for x
    x = 790,006,027,288.32/872,539.20
  6. Step 6: Final answer
    x = 905,410.36

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1.5x scale

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.