Home / 684,355.64-944,372.34-378,414.20

Finding the Fourth Proportional to 684,355.64, 944,372.34 and 378,414.20

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Solution

The fourth proportional to 684,355.64, 944,372.34 and 378,414.20 is: 522,190.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,355.64 : 944,372.34 = 378,414.20 : x
  2. Step 2: Convert to fraction form
    684,355.64/944,372.34 = 378,414.20/x
  3. Step 3: Cross multiply
    684,355.64x = 944,372.34 × 378,414.20
  4. Step 4: Simplify right side
    684,355.64x = 357,363,903,543.23
  5. Step 5: Solve for x
    x = 357,363,903,543.23/684,355.64
  6. Step 6: Final answer
    x = 522,190.34

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Double scale
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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.