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Finding the Fourth Proportional to 573,714.36, 860,564.52 and 257,948.28

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Solution

The fourth proportional to 573,714.36, 860,564.52 and 257,948.28 is: 386,919.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,714.36 : 860,564.52 = 257,948.28 : x
  2. Step 2: Convert to fraction form
    573,714.36/860,564.52 = 257,948.28/x
  3. Step 3: Cross multiply
    573,714.36x = 860,564.52 × 257,948.28
  4. Step 4: Simplify right side
    573,714.36x = 221,981,137,763.03
  5. Step 5: Solve for x
    x = 221,981,137,763.03/573,714.36
  6. Step 6: Final answer
    x = 386,919.26

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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.