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Finding the Fourth Proportional to 528,595.52, 792,893.27 and 129,231.55

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Solution

The fourth proportional to 528,595.52, 792,893.27 and 129,231.55 is: 193,847.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,595.52 : 792,893.27 = 129,231.55 : x
  2. Step 2: Convert to fraction form
    528,595.52/792,893.27 = 129,231.55/x
  3. Step 3: Cross multiply
    528,595.52x = 792,893.27 × 129,231.55
  4. Step 4: Simplify right side
    528,595.52x = 102,466,824,607.51
  5. Step 5: Solve for x
    x = 102,466,824,607.51/528,595.52
  6. Step 6: Final answer
    x = 193,847.32

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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.