Home / 910,961.76-1,257,031.76-528,913.92

Finding the Fourth Proportional to 910,961.76, 1,257,031.76 and 528,913.92

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Solution

The fourth proportional to 910,961.76, 1,257,031.76 and 528,913.92 is: 729,845.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,961.76 : 1,257,031.76 = 528,913.92 : x
  2. Step 2: Convert to fraction form
    910,961.76/1,257,031.76 = 528,913.92/x
  3. Step 3: Cross multiply
    910,961.76x = 1,257,031.76 × 528,913.92
  4. Step 4: Simplify right side
    910,961.76x = 664,861,595,746.10
  5. Step 5: Solve for x
    x = 664,861,595,746.10/910,961.76
  6. Step 6: Final answer
    x = 729,845.78

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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.