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Finding the Fourth Proportional to 545,105.57, 817,794.42 and 190,124.69

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Solution

The fourth proportional to 545,105.57, 817,794.42 and 190,124.69 is: 285,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,105.57 : 817,794.42 = 190,124.69 : x
  2. Step 2: Convert to fraction form
    545,105.57/817,794.42 = 190,124.69/x
  3. Step 3: Cross multiply
    545,105.57x = 817,794.42 × 190,124.69
  4. Step 4: Simplify right side
    545,105.57x = 155,482,910,586.23
  5. Step 5: Solve for x
    x = 155,482,910,586.23/545,105.57
  6. Step 6: Final answer
    x = 285,234.49

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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.