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Finding the Fourth Proportional to 539,274.75, 744,199.16 and 300,810.75

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Solution

The fourth proportional to 539,274.75, 744,199.16 and 300,810.75 is: 415,118.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,274.75 : 744,199.16 = 300,810.75 : x
  2. Step 2: Convert to fraction form
    539,274.75/744,199.16 = 300,810.75/x
  3. Step 3: Cross multiply
    539,274.75x = 744,199.16 × 300,810.75
  4. Step 4: Simplify right side
    539,274.75x = 223,863,105,964.92
  5. Step 5: Solve for x
    x = 223,863,105,964.92/539,274.75
  6. Step 6: Final answer
    x = 415,118.84

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.