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Finding the Fourth Proportional to 703,454.92, 970,768.64 and 381,164.76

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Solution

The fourth proportional to 703,454.92, 970,768.64 and 381,164.76 is: 526,007.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,454.92 : 970,768.64 = 381,164.76 : x
  2. Step 2: Convert to fraction form
    703,454.92/970,768.64 = 381,164.76/x
  3. Step 3: Cross multiply
    703,454.92x = 970,768.64 × 381,164.76
  4. Step 4: Simplify right side
    703,454.92x = 370,022,795,681.13
  5. Step 5: Solve for x
    x = 370,022,795,681.13/703,454.92
  6. Step 6: Final answer
    x = 526,007.83

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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.