Home / 693,233.60-1,039,850.40-378,305.60

Finding the Fourth Proportional to 693,233.60, 1,039,850.40 and 378,305.60

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Solution

The fourth proportional to 693,233.60, 1,039,850.40 and 378,305.60 is: 567,458.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,233.60 : 1,039,850.40 = 378,305.60 : x
  2. Step 2: Convert to fraction form
    693,233.60/1,039,850.40 = 378,305.60/x
  3. Step 3: Cross multiply
    693,233.60x = 1,039,850.40 × 378,305.60
  4. Step 4: Simplify right side
    693,233.60x = 393,381,229,482.24
  5. Step 5: Solve for x
    x = 393,381,229,482.24/693,233.60
  6. Step 6: Final answer
    x = 567,458.40

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.