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Finding the Fourth Proportional to 367,085.80, 550,628.70 and 311,098.60

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Solution

The fourth proportional to 367,085.80, 550,628.70 and 311,098.60 is: 466,647.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,085.80 : 550,628.70 = 311,098.60 : x
  2. Step 2: Convert to fraction form
    367,085.80/550,628.70 = 311,098.60/x
  3. Step 3: Cross multiply
    367,085.80x = 550,628.70 × 311,098.60
  4. Step 4: Simplify right side
    367,085.80x = 171,299,817,689.82
  5. Step 5: Solve for x
    x = 171,299,817,689.82/367,085.80
  6. Step 6: Final answer
    x = 466,647.90

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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.