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Finding the Fourth Proportional to 693,856.81, 957,682.43 and 451,717.75

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Solution

The fourth proportional to 693,856.81, 957,682.43 and 451,717.75 is: 623,474.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,856.81 : 957,682.43 = 451,717.75 : x
  2. Step 2: Convert to fraction form
    693,856.81/957,682.43 = 451,717.75/x
  3. Step 3: Cross multiply
    693,856.81x = 957,682.43 × 451,717.75
  4. Step 4: Simplify right side
    693,856.81x = 432,602,152,494.13
  5. Step 5: Solve for x
    x = 432,602,152,494.13/693,856.81
  6. Step 6: Final answer
    x = 623,474.68

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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.