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Finding the Fourth Proportional to 366,681.60, 550,459.80 and 206,884.80

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Solution

The fourth proportional to 366,681.60, 550,459.80 and 206,884.80 is: 310,573.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,681.60 : 550,459.80 = 206,884.80 : x
  2. Step 2: Convert to fraction form
    366,681.60/550,459.80 = 206,884.80/x
  3. Step 3: Cross multiply
    366,681.60x = 550,459.80 × 206,884.80
  4. Step 4: Simplify right side
    366,681.60x = 113,881,765,631.04
  5. Step 5: Solve for x
    x = 113,881,765,631.04/366,681.60
  6. Step 6: Final answer
    x = 310,573.98

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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.