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Finding the Fourth Proportional to 571,851.90, 856,793.70 and 372,069.45

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Solution

The fourth proportional to 571,851.90, 856,793.70 and 372,069.45 is: 557,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,851.90 : 856,793.70 = 372,069.45 : x
  2. Step 2: Convert to fraction form
    571,851.90/856,793.70 = 372,069.45/x
  3. Step 3: Cross multiply
    571,851.90x = 856,793.70 × 372,069.45
  4. Step 4: Simplify right side
    571,851.90x = 318,786,760,722.47
  5. Step 5: Solve for x
    x = 318,786,760,722.47/571,851.90
  6. Step 6: Final answer
    x = 557,463.85

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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.