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Finding the Fourth Proportional to 571,920.80, 857,730.84 and 271,804.26

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Solution

The fourth proportional to 571,920.80, 857,730.84 and 271,804.26 is: 407,634.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,920.80 : 857,730.84 = 271,804.26 : x
  2. Step 2: Convert to fraction form
    571,920.80/857,730.84 = 271,804.26/x
  3. Step 3: Cross multiply
    571,920.80x = 857,730.84 × 271,804.26
  4. Step 4: Simplify right side
    571,920.80x = 233,134,893,028.89
  5. Step 5: Solve for x
    x = 233,134,893,028.89/571,920.80
  6. Step 6: Final answer
    x = 407,634.93

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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.