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Finding the Fourth Proportional to 404,564.20, 606,927.30 and 120,254.20

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Solution

The fourth proportional to 404,564.20, 606,927.30 and 120,254.20 is: 180,405.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,564.20 : 606,927.30 = 120,254.20 : x
  2. Step 2: Convert to fraction form
    404,564.20/606,927.30 = 120,254.20/x
  3. Step 3: Cross multiply
    404,564.20x = 606,927.30 × 120,254.20
  4. Step 4: Simplify right side
    404,564.20x = 72,985,556,919.66
  5. Step 5: Solve for x
    x = 72,985,556,919.66/404,564.20
  6. Step 6: Final answer
    x = 180,405.38

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1.5x scale

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.