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Finding the Fourth Proportional to 653,489.54, 980,002.32 and 191,738.64

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Solution

The fourth proportional to 653,489.54, 980,002.32 and 191,738.64 is: 287,539.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,489.54 : 980,002.32 = 191,738.64 : x
  2. Step 2: Convert to fraction form
    653,489.54/980,002.32 = 191,738.64/x
  3. Step 3: Cross multiply
    653,489.54x = 980,002.32 × 191,738.64
  4. Step 4: Simplify right side
    653,489.54x = 187,904,312,033.65
  5. Step 5: Solve for x
    x = 187,904,312,033.65/653,489.54
  6. Step 6: Final answer
    x = 287,539.89

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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.