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Finding the Fourth Proportional to 547,207.80, 821,330.10 and 337,255.80

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Solution

The fourth proportional to 547,207.80, 821,330.10 and 337,255.80 is: 506,203.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,207.80 : 821,330.10 = 337,255.80 : x
  2. Step 2: Convert to fraction form
    547,207.80/821,330.10 = 337,255.80/x
  3. Step 3: Cross multiply
    547,207.80x = 821,330.10 × 337,255.80
  4. Step 4: Simplify right side
    547,207.80x = 276,998,339,939.58
  5. Step 5: Solve for x
    x = 276,998,339,939.58/547,207.80
  6. Step 6: Final answer
    x = 506,203.20

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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.