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Finding the Fourth Proportional to 335,340.40, 503,010.60 and 86,022.40

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Solution

The fourth proportional to 335,340.40, 503,010.60 and 86,022.40 is: 129,033.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    335,340.40 : 503,010.60 = 86,022.40 : x
  2. Step 2: Convert to fraction form
    335,340.40/503,010.60 = 86,022.40/x
  3. Step 3: Cross multiply
    335,340.40x = 503,010.60 × 86,022.40
  4. Step 4: Simplify right side
    335,340.40x = 43,270,179,037.44
  5. Step 5: Solve for x
    x = 43,270,179,037.44/335,340.40
  6. Step 6: Final answer
    x = 129,033.60

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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.