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Finding the Fourth Proportional to 510,522.76, 765,783.90 and 195,011.56

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Solution

The fourth proportional to 510,522.76, 765,783.90 and 195,011.56 is: 292,517.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,522.76 : 765,783.90 = 195,011.56 : x
  2. Step 2: Convert to fraction form
    510,522.76/765,783.90 = 195,011.56/x
  3. Step 3: Cross multiply
    510,522.76x = 765,783.90 × 195,011.56
  4. Step 4: Simplify right side
    510,522.76x = 149,336,712,961.88
  5. Step 5: Solve for x
    x = 149,336,712,961.88/510,522.76
  6. Step 6: Final answer
    x = 292,517.25

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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.