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Finding the Fourth Proportional to 510,511.95, 765,595.59 and 190,597.59

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Solution

The fourth proportional to 510,511.95, 765,595.59 and 190,597.59 is: 285,832.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,511.95 : 765,595.59 = 190,597.59 : x
  2. Step 2: Convert to fraction form
    510,511.95/765,595.59 = 190,597.59/x
  3. Step 3: Cross multiply
    510,511.95x = 765,595.59 × 190,597.59
  4. Step 4: Simplify right side
    510,511.95x = 145,920,670,540.65
  5. Step 5: Solve for x
    x = 145,920,670,540.65/510,511.95
  6. Step 6: Final answer
    x = 285,832.04

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Double scale
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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.