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Finding the Fourth Proportional to 573,664.20, 860,496.30 and 384,707.40

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Solution

The fourth proportional to 573,664.20, 860,496.30 and 384,707.40 is: 577,061.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,664.20 : 860,496.30 = 384,707.40 : x
  2. Step 2: Convert to fraction form
    573,664.20/860,496.30 = 384,707.40/x
  3. Step 3: Cross multiply
    573,664.20x = 860,496.30 × 384,707.40
  4. Step 4: Simplify right side
    573,664.20x = 331,039,294,282.62
  5. Step 5: Solve for x
    x = 331,039,294,282.62/573,664.20
  6. Step 6: Final answer
    x = 577,061.10

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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.