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Finding the Fourth Proportional to 662,405.10, 993,607.65 and 163,769.10

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Solution

The fourth proportional to 662,405.10, 993,607.65 and 163,769.10 is: 245,653.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,405.10 : 993,607.65 = 163,769.10 : x
  2. Step 2: Convert to fraction form
    662,405.10/993,607.65 = 163,769.10/x
  3. Step 3: Cross multiply
    662,405.10x = 993,607.65 × 163,769.10
  4. Step 4: Simplify right side
    662,405.10x = 162,722,230,593.62
  5. Step 5: Solve for x
    x = 162,722,230,593.62/662,405.10
  6. Step 6: Final answer
    x = 245,653.65

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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.