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Finding the Fourth Proportional to 547,308.20, 755,383.56 and 326,559.68

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Solution

The fourth proportional to 547,308.20, 755,383.56 and 326,559.68 is: 450,710.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,308.20 : 755,383.56 = 326,559.68 : x
  2. Step 2: Convert to fraction form
    547,308.20/755,383.56 = 326,559.68/x
  3. Step 3: Cross multiply
    547,308.20x = 755,383.56 × 326,559.68
  4. Step 4: Simplify right side
    547,308.20x = 246,677,813,630.86
  5. Step 5: Solve for x
    x = 246,677,813,630.86/547,308.20
  6. Step 6: Final answer
    x = 450,710.98

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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.