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Finding the Fourth Proportional to 598,840.20, 898,260.30 and 518,358.60

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Solution

The fourth proportional to 598,840.20, 898,260.30 and 518,358.60 is: 777,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    598,840.20 : 898,260.30 = 518,358.60 : x
  2. Step 2: Convert to fraction form
    598,840.20/898,260.30 = 518,358.60/x
  3. Step 3: Cross multiply
    598,840.20x = 898,260.30 × 518,358.60
  4. Step 4: Simplify right side
    598,840.20x = 465,620,951,543.58
  5. Step 5: Solve for x
    x = 465,620,951,543.58/598,840.20
  6. Step 6: Final answer
    x = 777,537.90

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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.