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Finding the Fourth Proportional to 528,091.60, 792,137.40 and 191,293.60

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Solution

The fourth proportional to 528,091.60, 792,137.40 and 191,293.60 is: 286,940.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,091.60 : 792,137.40 = 191,293.60 : x
  2. Step 2: Convert to fraction form
    528,091.60/792,137.40 = 191,293.60/x
  3. Step 3: Cross multiply
    528,091.60x = 792,137.40 × 191,293.60
  4. Step 4: Simplify right side
    528,091.60x = 151,530,814,940.64
  5. Step 5: Solve for x
    x = 151,530,814,940.64/528,091.60
  6. Step 6: Final answer
    x = 286,940.40

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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.