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Finding the Fourth Proportional to 573,522.08, 791,480.40 and 318,884

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Solution

The fourth proportional to 573,522.08, 791,480.40 and 318,884 is: 440,071.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,522.08 : 791,480.40 = 318,884 : x
  2. Step 2: Convert to fraction form
    573,522.08/791,480.40 = 318,884/x
  3. Step 3: Cross multiply
    573,522.08x = 791,480.40 × 318,884
  4. Step 4: Simplify right side
    573,522.08x = 252,390,435,873.60
  5. Step 5: Solve for x
    x = 252,390,435,873.60/573,522.08
  6. Step 6: Final answer
    x = 440,071.00

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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.