Home / 910,860.77-1,257,098.70-528,887.57

Finding the Fourth Proportional to 910,860.77, 1,257,098.70 and 528,887.57

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Solution

The fourth proportional to 910,860.77, 1,257,098.70 and 528,887.57 is: 729,929.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,860.77 : 1,257,098.70 = 528,887.57 : x
  2. Step 2: Convert to fraction form
    910,860.77/1,257,098.70 = 528,887.57/x
  3. Step 3: Cross multiply
    910,860.77x = 1,257,098.70 × 528,887.57
  4. Step 4: Simplify right side
    910,860.77x = 664,863,870,407.67
  5. Step 5: Solve for x
    x = 664,863,870,407.67/910,860.77
  6. Step 6: Final answer
    x = 729,929.20

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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.