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Finding the Fourth Proportional to 606,343.80, 909,645.30 and 185,662.20

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Solution

The fourth proportional to 606,343.80, 909,645.30 and 185,662.20 is: 278,532.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,343.80 : 909,645.30 = 185,662.20 : x
  2. Step 2: Convert to fraction form
    606,343.80/909,645.30 = 185,662.20/x
  3. Step 3: Cross multiply
    606,343.80x = 909,645.30 × 185,662.20
  4. Step 4: Simplify right side
    606,343.80x = 168,886,747,617.66
  5. Step 5: Solve for x
    x = 168,886,747,617.66/606,343.80
  6. Step 6: Final answer
    x = 278,532.98

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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.