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Finding the Fourth Proportional to 511,650.99, 767,555.42 and 174,612.78

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Solution

The fourth proportional to 511,650.99, 767,555.42 and 174,612.78 is: 261,946.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,650.99 : 767,555.42 = 174,612.78 : x
  2. Step 2: Convert to fraction form
    511,650.99/767,555.42 = 174,612.78/x
  3. Step 3: Cross multiply
    511,650.99x = 767,555.42 × 174,612.78
  4. Step 4: Simplify right side
    511,650.99x = 134,024,984,817.20
  5. Step 5: Solve for x
    x = 134,024,984,817.20/511,650.99
  6. Step 6: Final answer
    x = 261,946.11

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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.