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Finding the Fourth Proportional to 366,984.30, 550,476.45 and 317,120.70

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Solution

The fourth proportional to 366,984.30, 550,476.45 and 317,120.70 is: 475,681.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,984.30 : 550,476.45 = 317,120.70 : x
  2. Step 2: Convert to fraction form
    366,984.30/550,476.45 = 317,120.70/x
  3. Step 3: Cross multiply
    366,984.30x = 550,476.45 × 317,120.70
  4. Step 4: Simplify right side
    366,984.30x = 174,567,477,157.52
  5. Step 5: Solve for x
    x = 174,567,477,157.52/366,984.30
  6. Step 6: Final answer
    x = 475,681.05

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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.