Home / 910,965.76-1,257,037.28-528,917.92

Finding the Fourth Proportional to 910,965.76, 1,257,037.28 and 528,917.92

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Solution

The fourth proportional to 910,965.76, 1,257,037.28 and 528,917.92 is: 729,851.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,965.76 : 1,257,037.28 = 528,917.92 : x
  2. Step 2: Convert to fraction form
    910,965.76/1,257,037.28 = 528,917.92/x
  3. Step 3: Cross multiply
    910,965.76x = 1,257,037.28 × 528,917.92
  4. Step 4: Simplify right side
    910,965.76x = 664,869,543,500.06
  5. Step 5: Solve for x
    x = 664,869,543,500.06/910,965.76
  6. Step 6: Final answer
    x = 729,851.30

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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.