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Finding the Fourth Proportional to 511,070.20, 766,605.30 and 174,490.90

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Solution

The fourth proportional to 511,070.20, 766,605.30 and 174,490.90 is: 261,736.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,070.20 : 766,605.30 = 174,490.90 : x
  2. Step 2: Convert to fraction form
    511,070.20/766,605.30 = 174,490.90/x
  3. Step 3: Cross multiply
    511,070.20x = 766,605.30 × 174,490.90
  4. Step 4: Simplify right side
    511,070.20x = 133,765,648,741.77
  5. Step 5: Solve for x
    x = 133,765,648,741.77/511,070.20
  6. Step 6: Final answer
    x = 261,736.35

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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.