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Finding the Fourth Proportional to 519,673.08, 716,931.90 and 349,611.96

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Solution

The fourth proportional to 519,673.08, 716,931.90 and 349,611.96 is: 482,318.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,673.08 : 716,931.90 = 349,611.96 : x
  2. Step 2: Convert to fraction form
    519,673.08/716,931.90 = 349,611.96/x
  3. Step 3: Cross multiply
    519,673.08x = 716,931.90 × 349,611.96
  4. Step 4: Simplify right side
    519,673.08x = 250,647,966,745.52
  5. Step 5: Solve for x
    x = 250,647,966,745.52/519,673.08
  6. Step 6: Final answer
    x = 482,318.55

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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.