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Finding the Fourth Proportional to 530,410.80, 795,616.20 and 214,705.20

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Solution

The fourth proportional to 530,410.80, 795,616.20 and 214,705.20 is: 322,057.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,410.80 : 795,616.20 = 214,705.20 : x
  2. Step 2: Convert to fraction form
    530,410.80/795,616.20 = 214,705.20/x
  3. Step 3: Cross multiply
    530,410.80x = 795,616.20 × 214,705.20
  4. Step 4: Simplify right side
    530,410.80x = 170,822,935,344.24
  5. Step 5: Solve for x
    x = 170,822,935,344.24/530,410.80
  6. Step 6: Final answer
    x = 322,057.80

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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.