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Finding the Fourth Proportional to 547,093.17, 755,114.54 and 320,811.57

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Solution

The fourth proportional to 547,093.17, 755,114.54 and 320,811.57 is: 442,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,093.17 : 755,114.54 = 320,811.57 : x
  2. Step 2: Convert to fraction form
    547,093.17/755,114.54 = 320,811.57/x
  3. Step 3: Cross multiply
    547,093.17x = 755,114.54 × 320,811.57
  4. Step 4: Simplify right side
    547,093.17x = 242,249,481,909.26
  5. Step 5: Solve for x
    x = 242,249,481,909.26/547,093.17
  6. Step 6: Final answer
    x = 442,793.83

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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.