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Finding the Fourth Proportional to 662,609.30, 993,922.59 and 189,310.10

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Solution

The fourth proportional to 662,609.30, 993,922.59 and 189,310.10 is: 283,967.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    662,609.30 : 993,922.59 = 189,310.10 : x
  2. Step 2: Convert to fraction form
    662,609.30/993,922.59 = 189,310.10/x
  3. Step 3: Cross multiply
    662,609.30x = 993,922.59 × 189,310.10
  4. Step 4: Simplify right side
    662,609.30x = 188,159,584,905.16
  5. Step 5: Solve for x
    x = 188,159,584,905.16/662,609.30
  6. Step 6: Final answer
    x = 283,967.62

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Double scale
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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.