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Finding the Fourth Proportional to 528,081.70, 792,115.35 and 173,107.30

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Solution

The fourth proportional to 528,081.70, 792,115.35 and 173,107.30 is: 259,658.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,081.70 : 792,115.35 = 173,107.30 : x
  2. Step 2: Convert to fraction form
    528,081.70/792,115.35 = 173,107.30/x
  3. Step 3: Cross multiply
    528,081.70x = 792,115.35 × 173,107.30
  4. Step 4: Simplify right side
    528,081.70x = 137,120,949,527.06
  5. Step 5: Solve for x
    x = 137,120,949,527.06/528,081.70
  6. Step 6: Final answer
    x = 259,658.59

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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.