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Finding the Fourth Proportional to 547,487.76, 755,321.68 and 343,455.24

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Solution

The fourth proportional to 547,487.76, 755,321.68 and 343,455.24 is: 473,835.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,487.76 : 755,321.68 = 343,455.24 : x
  2. Step 2: Convert to fraction form
    547,487.76/755,321.68 = 343,455.24/x
  3. Step 3: Cross multiply
    547,487.76x = 755,321.68 × 343,455.24
  4. Step 4: Simplify right side
    547,487.76x = 259,419,188,881.60
  5. Step 5: Solve for x
    x = 259,419,188,881.60/547,487.76
  6. Step 6: Final answer
    x = 473,835.60

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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.