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Finding the Fourth Proportional to 407,773.01, 611,659.51 and 127,314.29

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Solution

The fourth proportional to 407,773.01, 611,659.51 and 127,314.29 is: 190,971.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,773.01 : 611,659.51 = 127,314.29 : x
  2. Step 2: Convert to fraction form
    407,773.01/611,659.51 = 127,314.29/x
  3. Step 3: Cross multiply
    407,773.01x = 611,659.51 × 127,314.29
  4. Step 4: Simplify right side
    407,773.01x = 77,872,992,860.81
  5. Step 5: Solve for x
    x = 77,872,992,860.81/407,773.01
  6. Step 6: Final answer
    x = 190,971.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.