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Finding the Fourth Proportional to 493,794.51, 681,434.31 and 276,002.89

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Solution

The fourth proportional to 493,794.51, 681,434.31 and 276,002.89 is: 380,882.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,794.51 : 681,434.31 = 276,002.89 : x
  2. Step 2: Convert to fraction form
    493,794.51/681,434.31 = 276,002.89/x
  3. Step 3: Cross multiply
    493,794.51x = 681,434.31 × 276,002.89
  4. Step 4: Simplify right side
    493,794.51x = 188,077,838,905.16
  5. Step 5: Solve for x
    x = 188,077,838,905.16/493,794.51
  6. Step 6: Final answer
    x = 380,882.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.