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Finding the Fourth Proportional to 510,511.41, 765,676.90 and 190,591.58

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Solution

The fourth proportional to 510,511.41, 765,676.90 and 190,591.58 is: 285,853.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,511.41 : 765,676.90 = 190,591.58 : x
  2. Step 2: Convert to fraction form
    510,511.41/765,676.90 = 190,591.58/x
  3. Step 3: Cross multiply
    510,511.41x = 765,676.90 × 190,591.58
  4. Step 4: Simplify right side
    510,511.41x = 145,931,572,292.93
  5. Step 5: Solve for x
    x = 145,931,572,292.93/510,511.41
  6. Step 6: Final answer
    x = 285,853.69

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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.