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Finding the Fourth Proportional to 962,990.56, 1,328,910.56 and 533,261.44

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Solution

The fourth proportional to 962,990.56, 1,328,910.56 and 533,261.44 is: 735,891.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    962,990.56 : 1,328,910.56 = 533,261.44 : x
  2. Step 2: Convert to fraction form
    962,990.56/1,328,910.56 = 533,261.44/x
  3. Step 3: Cross multiply
    962,990.56x = 1,328,910.56 × 533,261.44
  4. Step 4: Simplify right side
    962,990.56x = 708,656,758,856.81
  5. Step 5: Solve for x
    x = 708,656,758,856.81/962,990.56
  6. Step 6: Final answer
    x = 735,891.70

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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.