Home / 899,135.44-1,240,824.75-491,262.54

Finding the Fourth Proportional to 899,135.44, 1,240,824.75 and 491,262.54

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Solution

The fourth proportional to 899,135.44, 1,240,824.75 and 491,262.54 is: 677,952.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    899,135.44 : 1,240,824.75 = 491,262.54 : x
  2. Step 2: Convert to fraction form
    899,135.44/1,240,824.75 = 491,262.54/x
  3. Step 3: Cross multiply
    899,135.44x = 1,240,824.75 × 491,262.54
  4. Step 4: Simplify right side
    899,135.44x = 609,570,711,884.54
  5. Step 5: Solve for x
    x = 609,570,711,884.54/899,135.44
  6. Step 6: Final answer
    x = 677,952.05

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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.