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Finding the Fourth Proportional to 571,568.79, 857,178.09 and 395,209.11

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Solution

The fourth proportional to 571,568.79, 857,178.09 and 395,209.11 is: 592,692.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,568.79 : 857,178.09 = 395,209.11 : x
  2. Step 2: Convert to fraction form
    571,568.79/857,178.09 = 395,209.11/x
  3. Step 3: Cross multiply
    571,568.79x = 857,178.09 × 395,209.11
  4. Step 4: Simplify right side
    571,568.79x = 338,764,590,060.40
  5. Step 5: Solve for x
    x = 338,764,590,060.40/571,568.79
  6. Step 6: Final answer
    x = 592,692.60

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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.