Home / 484,403.28-668,200.20-290,759.44

Finding the Fourth Proportional to 484,403.28, 668,200.20 and 290,759.44

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Solution

The fourth proportional to 484,403.28, 668,200.20 and 290,759.44 is: 401,082.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,403.28 : 668,200.20 = 290,759.44 : x
  2. Step 2: Convert to fraction form
    484,403.28/668,200.20 = 290,759.44/x
  3. Step 3: Cross multiply
    484,403.28x = 668,200.20 × 290,759.44
  4. Step 4: Simplify right side
    484,403.28x = 194,285,515,959.89
  5. Step 5: Solve for x
    x = 194,285,515,959.89/484,403.28
  6. Step 6: Final answer
    x = 401,082.16

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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.