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Finding the Fourth Proportional to 313,013.44, 469,525.08 and 76,360.60

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Solution

The fourth proportional to 313,013.44, 469,525.08 and 76,360.60 is: 114,542.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,013.44 : 469,525.08 = 76,360.60 : x
  2. Step 2: Convert to fraction form
    313,013.44/469,525.08 = 76,360.60/x
  3. Step 3: Cross multiply
    313,013.44x = 469,525.08 × 76,360.60
  4. Step 4: Simplify right side
    313,013.44x = 35,853,216,823.85
  5. Step 5: Solve for x
    x = 35,853,216,823.85/313,013.44
  6. Step 6: Final answer
    x = 114,542.10

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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.