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Finding the Fourth Proportional to 530,906.40, 792,348.62 and 494,909.53

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Solution

The fourth proportional to 530,906.40, 792,348.62 and 494,909.53 is: 738,625.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,906.40 : 792,348.62 = 494,909.53 : x
  2. Step 2: Convert to fraction form
    530,906.40/792,348.62 = 494,909.53/x
  3. Step 3: Cross multiply
    530,906.40x = 792,348.62 × 494,909.53
  4. Step 4: Simplify right side
    530,906.40x = 392,140,878,664.93
  5. Step 5: Solve for x
    x = 392,140,878,664.93/530,906.40
  6. Step 6: Final answer
    x = 738,625.26

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.