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Finding the Fourth Proportional to 609,237, 913,855.50 and 166,005

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Solution

The fourth proportional to 609,237, 913,855.50 and 166,005 is: 249,007.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    609,237 : 913,855.50 = 166,005 : x
  2. Step 2: Convert to fraction form
    609,237/913,855.50 = 166,005/x
  3. Step 3: Cross multiply
    609,237x = 913,855.50 × 166,005
  4. Step 4: Simplify right side
    609,237x = 151,704,582,277.50
  5. Step 5: Solve for x
    x = 151,704,582,277.50/609,237
  6. Step 6: Final answer
    x = 249,007.50

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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.