Home / 857,521.56-1,286,293.20-324,899.52

Finding the Fourth Proportional to 857,521.56, 1,286,293.20 and 324,899.52

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Solution

The fourth proportional to 857,521.56, 1,286,293.20 and 324,899.52 is: 487,353.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,521.56 : 1,286,293.20 = 324,899.52 : x
  2. Step 2: Convert to fraction form
    857,521.56/1,286,293.20 = 324,899.52/x
  3. Step 3: Cross multiply
    857,521.56x = 1,286,293.20 × 324,899.52
  4. Step 4: Simplify right side
    857,521.56x = 417,916,043,259.26
  5. Step 5: Solve for x
    x = 417,916,043,259.26/857,521.56
  6. Step 6: Final answer
    x = 487,353.39

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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.