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Finding the Fourth Proportional to 404,631.80, 606,947.70 and 262,914.20

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Solution

The fourth proportional to 404,631.80, 606,947.70 and 262,914.20 is: 394,371.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,631.80 : 606,947.70 = 262,914.20 : x
  2. Step 2: Convert to fraction form
    404,631.80/606,947.70 = 262,914.20/x
  3. Step 3: Cross multiply
    404,631.80x = 606,947.70 × 262,914.20
  4. Step 4: Simplify right side
    404,631.80x = 159,575,168,987.34
  5. Step 5: Solve for x
    x = 159,575,168,987.34/404,631.80
  6. Step 6: Final answer
    x = 394,371.30

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Similar ratio
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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.