Home / 654,851.20-982,276.80-211,619.20

Finding the Fourth Proportional to 654,851.20, 982,276.80 and 211,619.20

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Solution

The fourth proportional to 654,851.20, 982,276.80 and 211,619.20 is: 317,428.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,851.20 : 982,276.80 = 211,619.20 : x
  2. Step 2: Convert to fraction form
    654,851.20/982,276.80 = 211,619.20/x
  3. Step 3: Cross multiply
    654,851.20x = 982,276.80 × 211,619.20
  4. Step 4: Simplify right side
    654,851.20x = 207,868,630,594.56
  5. Step 5: Solve for x
    x = 207,868,630,594.56/654,851.20
  6. Step 6: Final answer
    x = 317,428.80

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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.