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Finding the Fourth Proportional to 571,855.40, 857,199.90 and 335,076.20

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Solution

The fourth proportional to 571,855.40, 857,199.90 and 335,076.20 is: 502,272.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,855.40 : 857,199.90 = 335,076.20 : x
  2. Step 2: Convert to fraction form
    571,855.40/857,199.90 = 335,076.20/x
  3. Step 3: Cross multiply
    571,855.40x = 857,199.90 × 335,076.20
  4. Step 4: Simplify right side
    571,855.40x = 287,227,285,132.38
  5. Step 5: Solve for x
    x = 287,227,285,132.38/571,855.40
  6. Step 6: Final answer
    x = 502,272.58

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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.