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Finding the Fourth Proportional to 608,843.70, 913,265.55 and 188,118.90

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Solution

The fourth proportional to 608,843.70, 913,265.55 and 188,118.90 is: 282,178.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,843.70 : 913,265.55 = 188,118.90 : x
  2. Step 2: Convert to fraction form
    608,843.70/913,265.55 = 188,118.90/x
  3. Step 3: Cross multiply
    608,843.70x = 913,265.55 × 188,118.90
  4. Step 4: Simplify right side
    608,843.70x = 171,802,510,673.90
  5. Step 5: Solve for x
    x = 171,802,510,673.90/608,843.70
  6. Step 6: Final answer
    x = 282,178.35

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Double scale
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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.