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Finding the Fourth Proportional to 538,865.40, 808,221.30 and 183,895.80

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Solution

The fourth proportional to 538,865.40, 808,221.30 and 183,895.80 is: 275,817.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,865.40 : 808,221.30 = 183,895.80 : x
  2. Step 2: Convert to fraction form
    538,865.40/808,221.30 = 183,895.80/x
  3. Step 3: Cross multiply
    538,865.40x = 808,221.30 × 183,895.80
  4. Step 4: Simplify right side
    538,865.40x = 148,628,502,540.54
  5. Step 5: Solve for x
    x = 148,628,502,540.54/538,865.40
  6. Step 6: Final answer
    x = 275,817.49

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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.