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Finding the Fourth Proportional to 366,709.80, 550,064.70 and 354,462.60

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Solution

The fourth proportional to 366,709.80, 550,064.70 and 354,462.60 is: 531,693.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,709.80 : 550,064.70 = 354,462.60 : x
  2. Step 2: Convert to fraction form
    366,709.80/550,064.70 = 354,462.60/x
  3. Step 3: Cross multiply
    366,709.80x = 550,064.70 × 354,462.60
  4. Step 4: Simplify right side
    366,709.80x = 194,977,363,730.22
  5. Step 5: Solve for x
    x = 194,977,363,730.22/366,709.80
  6. Step 6: Final answer
    x = 531,693.90

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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.