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Finding the Fourth Proportional to 607,352.10, 911,028.15 and 186,627.30

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Solution

The fourth proportional to 607,352.10, 911,028.15 and 186,627.30 is: 279,940.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,352.10 : 911,028.15 = 186,627.30 : x
  2. Step 2: Convert to fraction form
    607,352.10/911,028.15 = 186,627.30/x
  3. Step 3: Cross multiply
    607,352.10x = 911,028.15 × 186,627.30
  4. Step 4: Simplify right side
    607,352.10x = 170,022,723,858.50
  5. Step 5: Solve for x
    x = 170,022,723,858.50/607,352.10
  6. Step 6: Final answer
    x = 279,940.95

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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.