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Finding the Fourth Proportional to 387,366.72, 580,682.88 and 176,879.04

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Solution

The fourth proportional to 387,366.72, 580,682.88 and 176,879.04 is: 265,150.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,366.72 : 580,682.88 = 176,879.04 : x
  2. Step 2: Convert to fraction form
    387,366.72/580,682.88 = 176,879.04/x
  3. Step 3: Cross multiply
    387,366.72x = 580,682.88 × 176,879.04
  4. Step 4: Simplify right side
    387,366.72x = 102,710,630,358.84
  5. Step 5: Solve for x
    x = 102,710,630,358.84/387,366.72
  6. Step 6: Final answer
    x = 265,150.89

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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.