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Finding the Fourth Proportional to 422,504.69, 583,056.47 and 243,656.69

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Solution

The fourth proportional to 422,504.69, 583,056.47 and 243,656.69 is: 336,246.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,504.69 : 583,056.47 = 243,656.69 : x
  2. Step 2: Convert to fraction form
    422,504.69/583,056.47 = 243,656.69/x
  3. Step 3: Cross multiply
    422,504.69x = 583,056.47 × 243,656.69
  4. Step 4: Simplify right side
    422,504.69x = 142,065,609,563.28
  5. Step 5: Solve for x
    x = 142,065,609,563.28/422,504.69
  6. Step 6: Final answer
    x = 336,246.23

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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.