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Finding the Fourth Proportional to 435,695.36, 653,653.91 and 255,932.80

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Solution

The fourth proportional to 435,695.36, 653,653.91 and 255,932.80 is: 383,964.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    435,695.36 : 653,653.91 = 255,932.80 : x
  2. Step 2: Convert to fraction form
    435,695.36/653,653.91 = 255,932.80/x
  3. Step 3: Cross multiply
    435,695.36x = 653,653.91 × 255,932.80
  4. Step 4: Simplify right side
    435,695.36x = 167,291,474,422.95
  5. Step 5: Solve for x
    x = 167,291,474,422.95/435,695.36
  6. Step 6: Final answer
    x = 383,964.33

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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.