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Finding the Fourth Proportional to 572,021.85, 857,888.76 and 235,156.44

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Solution

The fourth proportional to 572,021.85, 857,888.76 and 235,156.44 is: 352,675.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,021.85 : 857,888.76 = 235,156.44 : x
  2. Step 2: Convert to fraction form
    572,021.85/857,888.76 = 235,156.44/x
  3. Step 3: Cross multiply
    572,021.85x = 857,888.76 × 235,156.44
  4. Step 4: Simplify right side
    572,021.85x = 201,738,066,717.61
  5. Step 5: Solve for x
    x = 201,738,066,717.61/572,021.85
  6. Step 6: Final answer
    x = 352,675.46

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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.