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Finding the Fourth Proportional to 538,855.40, 808,283.10 and 183,783.80

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Solution

The fourth proportional to 538,855.40, 808,283.10 and 183,783.80 is: 275,675.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,855.40 : 808,283.10 = 183,783.80 : x
  2. Step 2: Convert to fraction form
    538,855.40/808,283.10 = 183,783.80/x
  3. Step 3: Cross multiply
    538,855.40x = 808,283.10 × 183,783.80
  4. Step 4: Simplify right side
    538,855.40x = 148,549,339,593.78
  5. Step 5: Solve for x
    x = 148,549,339,593.78/538,855.40
  6. Step 6: Final answer
    x = 275,675.70

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Half scale
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Double scale
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Similar ratio
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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.