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Finding the Fourth Proportional to 467,671.55, 645,239.67 and 286,194.29

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Solution

The fourth proportional to 467,671.55, 645,239.67 and 286,194.29 is: 394,858.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,671.55 : 645,239.67 = 286,194.29 : x
  2. Step 2: Convert to fraction form
    467,671.55/645,239.67 = 286,194.29/x
  3. Step 3: Cross multiply
    467,671.55x = 645,239.67 × 286,194.29
  4. Step 4: Simplify right side
    467,671.55x = 184,663,909,235.48
  5. Step 5: Solve for x
    x = 184,663,909,235.48/467,671.55
  6. Step 6: Final answer
    x = 394,858.12

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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.