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Finding the Fourth Proportional to 573,268.86, 789,743.52 and 400,864.41

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Solution

The fourth proportional to 573,268.86, 789,743.52 and 400,864.41 is: 552,236.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,268.86 : 789,743.52 = 400,864.41 : x
  2. Step 2: Convert to fraction form
    573,268.86/789,743.52 = 400,864.41/x
  3. Step 3: Cross multiply
    573,268.86x = 789,743.52 × 400,864.41
  4. Step 4: Simplify right side
    573,268.86x = 316,580,070,196.12
  5. Step 5: Solve for x
    x = 316,580,070,196.12/573,268.86
  6. Step 6: Final answer
    x = 552,236.64

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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.