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Finding the Fourth Proportional to 539,091.10, 808,636.65 and 512,847.10

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Solution

The fourth proportional to 539,091.10, 808,636.65 and 512,847.10 is: 769,270.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,091.10 : 808,636.65 = 512,847.10 : x
  2. Step 2: Convert to fraction form
    539,091.10/808,636.65 = 512,847.10/x
  3. Step 3: Cross multiply
    539,091.10x = 808,636.65 × 512,847.10
  4. Step 4: Simplify right side
    539,091.10x = 414,706,960,906.22
  5. Step 5: Solve for x
    x = 414,706,960,906.22/539,091.10
  6. Step 6: Final answer
    x = 769,270.65

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Similar ratio
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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.