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Finding the Fourth Proportional to 520,069.98, 780,104.97 and 183,031.26

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Solution

The fourth proportional to 520,069.98, 780,104.97 and 183,031.26 is: 274,546.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,069.98 : 780,104.97 = 183,031.26 : x
  2. Step 2: Convert to fraction form
    520,069.98/780,104.97 = 183,031.26/x
  3. Step 3: Cross multiply
    520,069.98x = 780,104.97 × 183,031.26
  4. Step 4: Simplify right side
    520,069.98x = 142,783,595,591.36
  5. Step 5: Solve for x
    x = 142,783,595,591.36/520,069.98
  6. Step 6: Final answer
    x = 274,546.89

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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.