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Finding the Fourth Proportional to 528,654.54, 792,974.97 and 129,298.62

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Solution

The fourth proportional to 528,654.54, 792,974.97 and 129,298.62 is: 193,946.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    528,654.54 : 792,974.97 = 129,298.62 : x
  2. Step 2: Convert to fraction form
    528,654.54/792,974.97 = 129,298.62/x
  3. Step 3: Cross multiply
    528,654.54x = 792,974.97 × 129,298.62
  4. Step 4: Simplify right side
    528,654.54x = 102,530,569,315.54
  5. Step 5: Solve for x
    x = 102,530,569,315.54/528,654.54
  6. Step 6: Final answer
    x = 193,946.26

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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.