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Finding the Fourth Proportional to 571,564.80, 857,172.08 and 395,205.12

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Solution

The fourth proportional to 571,564.80, 857,172.08 and 395,205.12 is: 592,686.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,564.80 : 857,172.08 = 395,205.12 : x
  2. Step 2: Convert to fraction form
    571,564.80/857,172.08 = 395,205.12/x
  3. Step 3: Cross multiply
    571,564.80x = 857,172.08 × 395,205.12
  4. Step 4: Simplify right side
    571,564.80x = 338,758,794,737.05
  5. Step 5: Solve for x
    x = 338,758,794,737.05/571,564.80
  6. Step 6: Final answer
    x = 592,686.59

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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.