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Finding the Fourth Proportional to 481,513.40, 722,270.10 and 245,317.40

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Solution

The fourth proportional to 481,513.40, 722,270.10 and 245,317.40 is: 367,976.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    481,513.40 : 722,270.10 = 245,317.40 : x
  2. Step 2: Convert to fraction form
    481,513.40/722,270.10 = 245,317.40/x
  3. Step 3: Cross multiply
    481,513.40x = 722,270.10 × 245,317.40
  4. Step 4: Simplify right side
    481,513.40x = 177,185,423,029.74
  5. Step 5: Solve for x
    x = 177,185,423,029.74/481,513.40
  6. Step 6: Final answer
    x = 367,976.10

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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.