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Finding the Fourth Proportional to 449,953.74, 621,092.52 and 259,043.22

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Solution

The fourth proportional to 449,953.74, 621,092.52 and 259,043.22 is: 357,569.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,953.74 : 621,092.52 = 259,043.22 : x
  2. Step 2: Convert to fraction form
    449,953.74/621,092.52 = 259,043.22/x
  3. Step 3: Cross multiply
    449,953.74x = 621,092.52 × 259,043.22
  4. Step 4: Simplify right side
    449,953.74x = 160,889,806,298.71
  5. Step 5: Solve for x
    x = 160,889,806,298.71/449,953.74
  6. Step 6: Final answer
    x = 357,569.66

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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.