Home / 910,861.14-1,257,099.21-528,887.94

Finding the Fourth Proportional to 910,861.14, 1,257,099.21 and 528,887.94

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Solution

The fourth proportional to 910,861.14, 1,257,099.21 and 528,887.94 is: 729,929.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,861.14 : 1,257,099.21 = 528,887.94 : x
  2. Step 2: Convert to fraction form
    910,861.14/1,257,099.21 = 528,887.94/x
  3. Step 3: Cross multiply
    910,861.14x = 1,257,099.21 × 528,887.94
  4. Step 4: Simplify right side
    910,861.14x = 664,864,611,552.53
  5. Step 5: Solve for x
    x = 664,864,611,552.53/910,861.14
  6. Step 6: Final answer
    x = 729,929.71

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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.