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Finding the Fourth Proportional to 703,356.20, 970,630.26 and 381,074.48

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Solution

The fourth proportional to 703,356.20, 970,630.26 and 381,074.48 is: 525,882.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    703,356.20 : 970,630.26 = 381,074.48 : x
  2. Step 2: Convert to fraction form
    703,356.20/970,630.26 = 381,074.48/x
  3. Step 3: Cross multiply
    703,356.20x = 970,630.26 × 381,074.48
  4. Step 4: Simplify right side
    703,356.20x = 369,882,421,601.77
  5. Step 5: Solve for x
    x = 369,882,421,601.77/703,356.20
  6. Step 6: Final answer
    x = 525,882.08

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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.