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Finding the Fourth Proportional to 562,297.20, 842,512.68 and 395,735.28

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Solution

The fourth proportional to 562,297.20, 842,512.68 and 395,735.28 is: 592,946.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,297.20 : 842,512.68 = 395,735.28 : x
  2. Step 2: Convert to fraction form
    562,297.20/842,512.68 = 395,735.28/x
  3. Step 3: Cross multiply
    562,297.20x = 842,512.68 × 395,735.28
  4. Step 4: Simplify right side
    562,297.20x = 333,411,991,323.35
  5. Step 5: Solve for x
    x = 333,411,991,323.35/562,297.20
  6. Step 6: Final answer
    x = 592,946.21

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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.