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Finding the Fourth Proportional to 523,447.44, 722,364 and 308,574.66

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Solution

The fourth proportional to 523,447.44, 722,364 and 308,574.66 is: 425,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    523,447.44 : 722,364 = 308,574.66 : x
  2. Step 2: Convert to fraction form
    523,447.44/722,364 = 308,574.66/x
  3. Step 3: Cross multiply
    523,447.44x = 722,364 × 308,574.66
  4. Step 4: Simplify right side
    523,447.44x = 222,903,225,696.24
  5. Step 5: Solve for x
    x = 222,903,225,696.24/523,447.44
  6. Step 6: Final answer
    x = 425,836.88

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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.