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Finding the Fourth Proportional to 609,019.68, 913,529.52 and 188,286.24

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Solution

The fourth proportional to 609,019.68, 913,529.52 and 188,286.24 is: 282,429.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,019.68 : 913,529.52 = 188,286.24 : x
  2. Step 2: Convert to fraction form
    609,019.68/913,529.52 = 188,286.24/x
  3. Step 3: Cross multiply
    609,019.68x = 913,529.52 × 188,286.24
  4. Step 4: Simplify right side
    609,019.68x = 172,005,038,449.81
  5. Step 5: Solve for x
    x = 172,005,038,449.81/609,019.68
  6. Step 6: Final answer
    x = 282,429.36

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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.