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Finding the Fourth Proportional to 404,987.80, 607,481.70 and 168,251.80

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Solution

The fourth proportional to 404,987.80, 607,481.70 and 168,251.80 is: 252,377.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,987.80 : 607,481.70 = 168,251.80 : x
  2. Step 2: Convert to fraction form
    404,987.80/607,481.70 = 168,251.80/x
  3. Step 3: Cross multiply
    404,987.80x = 607,481.70 × 168,251.80
  4. Step 4: Simplify right side
    404,987.80x = 102,209,889,492.06
  5. Step 5: Solve for x
    x = 102,209,889,492.06/404,987.80
  6. Step 6: Final answer
    x = 252,377.70

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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.