Home / 863,458.28-1,191,580.20-476,288.60

Finding the Fourth Proportional to 863,458.28, 1,191,580.20 and 476,288.60

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Solution

The fourth proportional to 863,458.28, 1,191,580.20 and 476,288.60 is: 657,282.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,458.28 : 1,191,580.20 = 476,288.60 : x
  2. Step 2: Convert to fraction form
    863,458.28/1,191,580.20 = 476,288.60/x
  3. Step 3: Cross multiply
    863,458.28x = 1,191,580.20 × 476,288.60
  4. Step 4: Simplify right side
    863,458.28x = 567,536,065,245.72
  5. Step 5: Solve for x
    x = 567,536,065,245.72/863,458.28
  6. Step 6: Final answer
    x = 657,282.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.