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Finding the Fourth Proportional to 347,785.92, 521,678.88 and 189,928.26

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Solution

The fourth proportional to 347,785.92, 521,678.88 and 189,928.26 is: 284,892.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,785.92 : 521,678.88 = 189,928.26 : x
  2. Step 2: Convert to fraction form
    347,785.92/521,678.88 = 189,928.26/x
  3. Step 3: Cross multiply
    347,785.92x = 521,678.88 × 189,928.26
  4. Step 4: Simplify right side
    347,785.92x = 99,081,561,957.15
  5. Step 5: Solve for x
    x = 99,081,561,957.15/347,785.92
  6. Step 6: Final answer
    x = 284,892.39

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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.