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Finding the Fourth Proportional to 534,781.92, 800,985 and 382,695.60

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Solution

The fourth proportional to 534,781.92, 800,985 and 382,695.60 is: 573,193.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,781.92 : 800,985 = 382,695.60 : x
  2. Step 2: Convert to fraction form
    534,781.92/800,985 = 382,695.60/x
  3. Step 3: Cross multiply
    534,781.92x = 800,985 × 382,695.60
  4. Step 4: Simplify right side
    534,781.92x = 306,533,435,166
  5. Step 5: Solve for x
    x = 306,533,435,166/534,781.92
  6. Step 6: Final answer
    x = 573,193.34

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1.5x scale

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.