Home / 910,440.68-1,256,310.81-523,177.65

Finding the Fourth Proportional to 910,440.68, 1,256,310.81 and 523,177.65

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Solution

The fourth proportional to 910,440.68, 1,256,310.81 and 523,177.65 is: 721,929.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,440.68 : 1,256,310.81 = 523,177.65 : x
  2. Step 2: Convert to fraction form
    910,440.68/1,256,310.81 = 523,177.65/x
  3. Step 3: Cross multiply
    910,440.68x = 1,256,310.81 × 523,177.65
  4. Step 4: Simplify right side
    910,440.68x = 657,273,737,245.40
  5. Step 5: Solve for x
    x = 657,273,737,245.40/910,440.68
  6. Step 6: Final answer
    x = 721,929.23

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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.