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Finding the Fourth Proportional to 537,914.70, 806,872.05 and 513,420.30

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Solution

The fourth proportional to 537,914.70, 806,872.05 and 513,420.30 is: 770,130.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    537,914.70 : 806,872.05 = 513,420.30 : x
  2. Step 2: Convert to fraction form
    537,914.70/806,872.05 = 513,420.30/x
  3. Step 3: Cross multiply
    537,914.70x = 806,872.05 × 513,420.30
  4. Step 4: Simplify right side
    537,914.70x = 414,264,489,972.62
  5. Step 5: Solve for x
    x = 414,264,489,972.62/537,914.70
  6. Step 6: Final answer
    x = 770,130.45

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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.