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Finding the Fourth Proportional to 906,806.09, 1,360,375.20 and 374,036.49

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Solution

The fourth proportional to 906,806.09, 1,360,375.20 and 374,036.49 is: 561,123.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    906,806.09 : 1,360,375.20 = 374,036.49 : x
  2. Step 2: Convert to fraction form
    906,806.09/1,360,375.20 = 374,036.49/x
  3. Step 3: Cross multiply
    906,806.09x = 1,360,375.20 × 374,036.49
  4. Step 4: Simplify right side
    906,806.09x = 508,829,964,891.05
  5. Step 5: Solve for x
    x = 508,829,964,891.05/906,806.09
  6. Step 6: Final answer
    x = 561,123.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.