Home / 840,388.88-1,259,533.44-540,070.16

Finding the Fourth Proportional to 840,388.88, 1,259,533.44 and 540,070.16

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Solution

The fourth proportional to 840,388.88, 1,259,533.44 and 540,070.16 is: 809,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,388.88 : 1,259,533.44 = 540,070.16 : x
  2. Step 2: Convert to fraction form
    840,388.88/1,259,533.44 = 540,070.16/x
  3. Step 3: Cross multiply
    840,388.88x = 1,259,533.44 × 540,070.16
  4. Step 4: Simplify right side
    840,388.88x = 680,236,426,466.15
  5. Step 5: Solve for x
    x = 680,236,426,466.15/840,388.88
  6. Step 6: Final answer
    x = 809,430.54

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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.