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Finding the Fourth Proportional to 608,890.80, 913,336.20 and 188,295.60

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Solution

The fourth proportional to 608,890.80, 913,336.20 and 188,295.60 is: 282,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,890.80 : 913,336.20 = 188,295.60 : x
  2. Step 2: Convert to fraction form
    608,890.80/913,336.20 = 188,295.60/x
  3. Step 3: Cross multiply
    608,890.80x = 913,336.20 × 188,295.60
  4. Step 4: Simplify right side
    608,890.80x = 171,977,187,780.72
  5. Step 5: Solve for x
    x = 171,977,187,780.72/608,890.80
  6. Step 6: Final answer
    x = 282,443.40

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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.