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Finding the Fourth Proportional to 431,868.66, 595,670.19 and 374,405.22

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Solution

The fourth proportional to 431,868.66, 595,670.19 and 374,405.22 is: 516,411.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,868.66 : 595,670.19 = 374,405.22 : x
  2. Step 2: Convert to fraction form
    431,868.66/595,670.19 = 374,405.22/x
  3. Step 3: Cross multiply
    431,868.66x = 595,670.19 × 374,405.22
  4. Step 4: Simplify right side
    431,868.66x = 223,022,028,534.39
  5. Step 5: Solve for x
    x = 223,022,028,534.39/431,868.66
  6. Step 6: Final answer
    x = 516,411.70

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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.