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Finding the Fourth Proportional to 703,174.62, 970,380.54 and 380,883.96

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Solution

The fourth proportional to 703,174.62, 970,380.54 and 380,883.96 is: 525,619.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,174.62 : 970,380.54 = 380,883.96 : x
  2. Step 2: Convert to fraction form
    703,174.62/970,380.54 = 380,883.96/x
  3. Step 3: Cross multiply
    703,174.62x = 970,380.54 × 380,883.96
  4. Step 4: Simplify right side
    703,174.62x = 369,602,382,782.14
  5. Step 5: Solve for x
    x = 369,602,382,782.14/703,174.62
  6. Step 6: Final answer
    x = 525,619.63

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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.