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Finding the Fourth Proportional to 651,129.20, 976,693.80 and 224,664.20

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Solution

The fourth proportional to 651,129.20, 976,693.80 and 224,664.20 is: 336,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,129.20 : 976,693.80 = 224,664.20 : x
  2. Step 2: Convert to fraction form
    651,129.20/976,693.80 = 224,664.20/x
  3. Step 3: Cross multiply
    651,129.20x = 976,693.80 × 224,664.20
  4. Step 4: Simplify right side
    651,129.20x = 219,428,131,221.96
  5. Step 5: Solve for x
    x = 219,428,131,221.96/651,129.20
  6. Step 6: Final answer
    x = 336,996.30

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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.