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Finding the Fourth Proportional to 613,701.41, 846,502.40 and 383,859.81

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Solution

The fourth proportional to 613,701.41, 846,502.40 and 383,859.81 is: 529,472.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,701.41 : 846,502.40 = 383,859.81 : x
  2. Step 2: Convert to fraction form
    613,701.41/846,502.40 = 383,859.81/x
  3. Step 3: Cross multiply
    613,701.41x = 846,502.40 × 383,859.81
  4. Step 4: Simplify right side
    613,701.41x = 324,938,249,228.98
  5. Step 5: Solve for x
    x = 324,938,249,228.98/613,701.41
  6. Step 6: Final answer
    x = 529,472.87

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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.