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Finding the Fourth Proportional to 448,012.55, 618,257.31 and 246,808.55

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Solution

The fourth proportional to 448,012.55, 618,257.31 and 246,808.55 is: 340,595.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,012.55 : 618,257.31 = 246,808.55 : x
  2. Step 2: Convert to fraction form
    448,012.55/618,257.31 = 246,808.55/x
  3. Step 3: Cross multiply
    448,012.55x = 618,257.31 × 246,808.55
  4. Step 4: Simplify right side
    448,012.55x = 152,591,190,208.00
  5. Step 5: Solve for x
    x = 152,591,190,208.00/448,012.55
  6. Step 6: Final answer
    x = 340,595.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.