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Finding the Fourth Proportional to 546,195.04, 818,729.60 and 209,143.60

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Solution

The fourth proportional to 546,195.04, 818,729.60 and 209,143.60 is: 313,499.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    546,195.04 : 818,729.60 = 209,143.60 : x
  2. Step 2: Convert to fraction form
    546,195.04/818,729.60 = 209,143.60/x
  3. Step 3: Cross multiply
    546,195.04x = 818,729.60 × 209,143.60
  4. Step 4: Simplify right side
    546,195.04x = 171,232,055,970.56
  5. Step 5: Solve for x
    x = 171,232,055,970.56/546,195.04
  6. Step 6: Final answer
    x = 313,499.84

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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.