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Finding the Fourth Proportional to 589,310.80, 883,966.20 and 146,078.80

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Solution

The fourth proportional to 589,310.80, 883,966.20 and 146,078.80 is: 219,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    589,310.80 : 883,966.20 = 146,078.80 : x
  2. Step 2: Convert to fraction form
    589,310.80/883,966.20 = 146,078.80/x
  3. Step 3: Cross multiply
    589,310.80x = 883,966.20 × 146,078.80
  4. Step 4: Simplify right side
    589,310.80x = 129,128,721,736.56
  5. Step 5: Solve for x
    x = 129,128,721,736.56/589,310.80
  6. Step 6: Final answer
    x = 219,118.20

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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.