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Finding the Fourth Proportional to 395,281.92, 592,426.26 and 170,379.12

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Solution

The fourth proportional to 395,281.92, 592,426.26 and 170,379.12 is: 255,354.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    395,281.92 : 592,426.26 = 170,379.12 : x
  2. Step 2: Convert to fraction form
    395,281.92/592,426.26 = 170,379.12/x
  3. Step 3: Cross multiply
    395,281.92x = 592,426.26 × 170,379.12
  4. Step 4: Simplify right side
    395,281.92x = 100,937,064,843.69
  5. Step 5: Solve for x
    x = 100,937,064,843.69/395,281.92
  6. Step 6: Final answer
    x = 255,354.62

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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.