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Finding the Fourth Proportional to 547,218.80, 821,346.60 and 337,266.80

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Solution

The fourth proportional to 547,218.80, 821,346.60 and 337,266.80 is: 506,219.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,218.80 : 821,346.60 = 337,266.80 : x
  2. Step 2: Convert to fraction form
    547,218.80/821,346.60 = 337,266.80/x
  3. Step 3: Cross multiply
    547,218.80x = 821,346.60 × 337,266.80
  4. Step 4: Simplify right side
    547,218.80x = 277,012,939,472.88
  5. Step 5: Solve for x
    x = 277,012,939,472.88/547,218.80
  6. Step 6: Final answer
    x = 506,219.70

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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.