Home / 857,182.56-1,281,989.52-519,289.44

Finding the Fourth Proportional to 857,182.56, 1,281,989.52 and 519,289.44

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Solution

The fourth proportional to 857,182.56, 1,281,989.52 and 519,289.44 is: 776,641.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,182.56 : 1,281,989.52 = 519,289.44 : x
  2. Step 2: Convert to fraction form
    857,182.56/1,281,989.52 = 519,289.44/x
  3. Step 3: Cross multiply
    857,182.56x = 1,281,989.52 × 519,289.44
  4. Step 4: Simplify right side
    857,182.56x = 665,723,619,926.67
  5. Step 5: Solve for x
    x = 665,723,619,926.67/857,182.56
  6. Step 6: Final answer
    x = 776,641.58

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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.