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Finding the Fourth Proportional to 573,564, 791,480.88 and 318,906.08

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Solution

The fourth proportional to 573,564, 791,480.88 and 318,906.08 is: 440,069.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,564 : 791,480.88 = 318,906.08 : x
  2. Step 2: Convert to fraction form
    573,564/791,480.88 = 318,906.08/x
  3. Step 3: Cross multiply
    573,564x = 791,480.88 × 318,906.08
  4. Step 4: Simplify right side
    573,564x = 252,408,064,835.75
  5. Step 5: Solve for x
    x = 252,408,064,835.75/573,564
  6. Step 6: Final answer
    x = 440,069.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.