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Finding the Fourth Proportional to 703,460.76, 970,774.32 and 381,179.64

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Solution

The fourth proportional to 703,460.76, 970,774.32 and 381,179.64 is: 526,027.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,460.76 : 970,774.32 = 381,179.64 : x
  2. Step 2: Convert to fraction form
    703,460.76/970,774.32 = 381,179.64/x
  3. Step 3: Cross multiply
    703,460.76x = 970,774.32 × 381,179.64
  4. Step 4: Simplify right side
    703,460.76x = 370,039,405,818.85
  5. Step 5: Solve for x
    x = 370,039,405,818.85/703,460.76
  6. Step 6: Final answer
    x = 526,027.07

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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.