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Finding the Fourth Proportional to 571,278.80, 857,038.04 and 171,948.80

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Solution

The fourth proportional to 571,278.80, 857,038.04 and 171,948.80 is: 257,959.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,278.80 : 857,038.04 = 171,948.80 : x
  2. Step 2: Convert to fraction form
    571,278.80/857,038.04 = 171,948.80/x
  3. Step 3: Cross multiply
    571,278.80x = 857,038.04 × 171,948.80
  4. Step 4: Simplify right side
    571,278.80x = 147,366,662,532.35
  5. Step 5: Solve for x
    x = 147,366,662,532.35/571,278.80
  6. Step 6: Final answer
    x = 257,959.27

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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.