Home / 910,862.77-1,257,101.46-528,889.57

Finding the Fourth Proportional to 910,862.77, 1,257,101.46 and 528,889.57

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Solution

The fourth proportional to 910,862.77, 1,257,101.46 and 528,889.57 is: 729,931.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,862.77 : 1,257,101.46 = 528,889.57 : x
  2. Step 2: Convert to fraction form
    910,862.77/1,257,101.46 = 528,889.57/x
  3. Step 3: Cross multiply
    910,862.77x = 1,257,101.46 × 528,889.57
  4. Step 4: Simplify right side
    910,862.77x = 664,867,850,625.77
  5. Step 5: Solve for x
    x = 664,867,850,625.77/910,862.77
  6. Step 6: Final answer
    x = 729,931.96

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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.