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Finding the Fourth Proportional to 574,734.71, 793,100.40 and 422,412.59

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Solution

The fourth proportional to 574,734.71, 793,100.40 and 422,412.59 is: 582,904.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    574,734.71 : 793,100.40 = 422,412.59 : x
  2. Step 2: Convert to fraction form
    574,734.71/793,100.40 = 422,412.59/x
  3. Step 3: Cross multiply
    574,734.71x = 793,100.40 × 422,412.59
  4. Step 4: Simplify right side
    574,734.71x = 335,015,590,128.53
  5. Step 5: Solve for x
    x = 335,015,590,128.53/574,734.71
  6. Step 6: Final answer
    x = 582,904.75

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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.