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Finding the Fourth Proportional to 541,286.80, 811,930.20 and 525,734.80

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Solution

The fourth proportional to 541,286.80, 811,930.20 and 525,734.80 is: 788,602.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,286.80 : 811,930.20 = 525,734.80 : x
  2. Step 2: Convert to fraction form
    541,286.80/811,930.20 = 525,734.80/x
  3. Step 3: Cross multiply
    541,286.80x = 811,930.20 × 525,734.80
  4. Step 4: Simplify right side
    541,286.80x = 426,859,961,310.96
  5. Step 5: Solve for x
    x = 426,859,961,310.96/541,286.80
  6. Step 6: Final answer
    x = 788,602.20

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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.