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Finding the Fourth Proportional to 404,594.40, 606,632.40 and 168,031.20

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Solution

The fourth proportional to 404,594.40, 606,632.40 and 168,031.20 is: 251,939.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,594.40 : 606,632.40 = 168,031.20 : x
  2. Step 2: Convert to fraction form
    404,594.40/606,632.40 = 168,031.20/x
  3. Step 3: Cross multiply
    404,594.40x = 606,632.40 × 168,031.20
  4. Step 4: Simplify right side
    404,594.40x = 101,933,170,130.88
  5. Step 5: Solve for x
    x = 101,933,170,130.88/404,594.40
  6. Step 6: Final answer
    x = 251,939.15

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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.