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Finding the Fourth Proportional to 427,672.68, 590,124.79 and 259,754.34

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Solution

The fourth proportional to 427,672.68, 590,124.79 and 259,754.34 is: 358,422.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,672.68 : 590,124.79 = 259,754.34 : x
  2. Step 2: Convert to fraction form
    427,672.68/590,124.79 = 259,754.34/x
  3. Step 3: Cross multiply
    427,672.68x = 590,124.79 × 259,754.34
  4. Step 4: Simplify right side
    427,672.68x = 153,287,477,881.75
  5. Step 5: Solve for x
    x = 153,287,477,881.75/427,672.68
  6. Step 6: Final answer
    x = 358,422.42

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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.