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Finding the Fourth Proportional to 715,635.76, 986,485.74 and 606,336.70

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Solution

The fourth proportional to 715,635.76, 986,485.74 and 606,336.70 is: 835,819.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    715,635.76 : 986,485.74 = 606,336.70 : x
  2. Step 2: Convert to fraction form
    715,635.76/986,485.74 = 606,336.70/x
  3. Step 3: Cross multiply
    715,635.76x = 986,485.74 × 606,336.70
  4. Step 4: Simplify right side
    715,635.76x = 598,142,508,188.66
  5. Step 5: Solve for x
    x = 598,142,508,188.66/715,635.76
  6. Step 6: Final answer
    x = 835,819.76

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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.