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Finding the Fourth Proportional to 326,914.40, 490,371.60 and 116,476.40

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Solution

The fourth proportional to 326,914.40, 490,371.60 and 116,476.40 is: 174,714.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,914.40 : 490,371.60 = 116,476.40 : x
  2. Step 2: Convert to fraction form
    326,914.40/490,371.60 = 116,476.40/x
  3. Step 3: Cross multiply
    326,914.40x = 490,371.60 × 116,476.40
  4. Step 4: Simplify right side
    326,914.40x = 57,116,718,630.24
  5. Step 5: Solve for x
    x = 57,116,718,630.24/326,914.40
  6. Step 6: Final answer
    x = 174,714.60

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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.