Home / 575,165.20-862,739.70-259,621.60

Finding the Fourth Proportional to 575,165.20, 862,739.70 and 259,621.60

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Solution

The fourth proportional to 575,165.20, 862,739.70 and 259,621.60 is: 389,428.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,165.20 : 862,739.70 = 259,621.60 : x
  2. Step 2: Convert to fraction form
    575,165.20/862,739.70 = 259,621.60/x
  3. Step 3: Cross multiply
    575,165.20x = 862,739.70 × 259,621.60
  4. Step 4: Simplify right side
    575,165.20x = 223,985,861,297.52
  5. Step 5: Solve for x
    x = 223,985,861,297.52/575,165.20
  6. Step 6: Final answer
    x = 389,428.74

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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.