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Finding the Fourth Proportional to 404,620.20, 607,011.30 and 120,310.20

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Solution

The fourth proportional to 404,620.20, 607,011.30 and 120,310.20 is: 180,489.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,620.20 : 607,011.30 = 120,310.20 : x
  2. Step 2: Convert to fraction form
    404,620.20/607,011.30 = 120,310.20/x
  3. Step 3: Cross multiply
    404,620.20x = 607,011.30 × 120,310.20
  4. Step 4: Simplify right side
    404,620.20x = 73,029,650,905.26
  5. Step 5: Solve for x
    x = 73,029,650,905.26/404,620.20
  6. Step 6: Final answer
    x = 180,489.38

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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.