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Finding the Fourth Proportional to 277,855.47, 383,447.79 and 170,363.61

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Solution

The fourth proportional to 277,855.47, 383,447.79 and 170,363.61 is: 235,106.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,855.47 : 383,447.79 = 170,363.61 : x
  2. Step 2: Convert to fraction form
    277,855.47/383,447.79 = 170,363.61/x
  3. Step 3: Cross multiply
    277,855.47x = 383,447.79 × 170,363.61
  4. Step 4: Simplify right side
    277,855.47x = 65,325,549,750.92
  5. Step 5: Solve for x
    x = 65,325,549,750.92/277,855.47
  6. Step 6: Final answer
    x = 235,106.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.