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Finding the Fourth Proportional to 571,292.80, 857,059.04 and 171,962.80

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Solution

The fourth proportional to 571,292.80, 857,059.04 and 171,962.80 is: 257,980.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,292.80 : 857,059.04 = 171,962.80 : x
  2. Step 2: Convert to fraction form
    571,292.80/857,059.04 = 171,962.80/x
  3. Step 3: Cross multiply
    571,292.80x = 857,059.04 × 171,962.80
  4. Step 4: Simplify right side
    571,292.80x = 147,382,272,283.71
  5. Step 5: Solve for x
    x = 147,382,272,283.71/571,292.80
  6. Step 6: Final answer
    x = 257,980.27

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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.