Home / 684,098.20-944,049.18-378,193.60

Finding the Fourth Proportional to 684,098.20, 944,049.18 and 378,193.60

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Solution

The fourth proportional to 684,098.20, 944,049.18 and 378,193.60 is: 521,903.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,098.20 : 944,049.18 = 378,193.60 : x
  2. Step 2: Convert to fraction form
    684,098.20/944,049.18 = 378,193.60/x
  3. Step 3: Cross multiply
    684,098.20x = 944,049.18 × 378,193.60
  4. Step 4: Simplify right side
    684,098.20x = 357,033,357,961.25
  5. Step 5: Solve for x
    x = 357,033,357,961.25/684,098.20
  6. Step 6: Final answer
    x = 521,903.67

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Double scale
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Similar ratio
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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.