Home / 571,619.20-857,209.12-271,868.80

Finding the Fourth Proportional to 571,619.20, 857,209.12 and 271,868.80

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Solution

The fourth proportional to 571,619.20, 857,209.12 and 271,868.80 is: 407,698.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,619.20 : 857,209.12 = 271,868.80 : x
  2. Step 2: Convert to fraction form
    571,619.20/857,209.12 = 271,868.80/x
  3. Step 3: Cross multiply
    571,619.20x = 857,209.12 × 271,868.80
  4. Step 4: Simplify right side
    571,619.20x = 233,048,414,803.46
  5. Step 5: Solve for x
    x = 233,048,414,803.46/571,619.20
  6. Step 6: Final answer
    x = 407,698.72

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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.