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Finding the Fourth Proportional to 910,806, 1,256,932.26 and 502,906.74

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Solution

The fourth proportional to 910,806, 1,256,932.26 and 502,906.74 is: 694,022.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    910,806 : 1,256,932.26 = 502,906.74 : x
  2. Step 2: Convert to fraction form
    910,806/1,256,932.26 = 502,906.74/x
  3. Step 3: Cross multiply
    910,806x = 1,256,932.26 × 502,906.74
  4. Step 4: Simplify right side
    910,806x = 632,119,705,277.43
  5. Step 5: Solve for x
    x = 632,119,705,277.43/910,806
  6. Step 6: Final answer
    x = 694,022.33

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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.