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Finding the Fourth Proportional to 504,640.62, 696,420.76 and 275,216.80

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Solution

The fourth proportional to 504,640.62, 696,420.76 and 275,216.80 is: 379,808.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,640.62 : 696,420.76 = 275,216.80 : x
  2. Step 2: Convert to fraction form
    504,640.62/696,420.76 = 275,216.80/x
  3. Step 3: Cross multiply
    504,640.62x = 696,420.76 × 275,216.80
  4. Step 4: Simplify right side
    504,640.62x = 191,666,694,166.88
  5. Step 5: Solve for x
    x = 191,666,694,166.88/504,640.62
  6. Step 6: Final answer
    x = 379,808.30

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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.