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Finding the Fourth Proportional to 539,499.40, 809,249.10 and 184,427.80

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Solution

The fourth proportional to 539,499.40, 809,249.10 and 184,427.80 is: 276,641.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,499.40 : 809,249.10 = 184,427.80 : x
  2. Step 2: Convert to fraction form
    539,499.40/809,249.10 = 184,427.80/x
  3. Step 3: Cross multiply
    539,499.40x = 809,249.10 × 184,427.80
  4. Step 4: Simplify right side
    539,499.40x = 149,248,031,164.98
  5. Step 5: Solve for x
    x = 149,248,031,164.98/539,499.40
  6. Step 6: Final answer
    x = 276,641.70

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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.