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Finding the Fourth Proportional to 703,336.88, 970,605.12 and 381,049.20

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Solution

The fourth proportional to 703,336.88, 970,605.12 and 381,049.20 is: 525,848.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,336.88 : 970,605.12 = 381,049.20 : x
  2. Step 2: Convert to fraction form
    703,336.88/970,605.12 = 381,049.20/x
  3. Step 3: Cross multiply
    703,336.88x = 970,605.12 × 381,049.20
  4. Step 4: Simplify right side
    703,336.88x = 369,848,304,491.90
  5. Step 5: Solve for x
    x = 369,848,304,491.90/703,336.88
  6. Step 6: Final answer
    x = 525,848.02

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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.