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Finding the Fourth Proportional to 437,764.60, 656,646.90 and 434,999.80

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Solution

The fourth proportional to 437,764.60, 656,646.90 and 434,999.80 is: 652,499.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,764.60 : 656,646.90 = 434,999.80 : x
  2. Step 2: Convert to fraction form
    437,764.60/656,646.90 = 434,999.80/x
  3. Step 3: Cross multiply
    437,764.60x = 656,646.90 × 434,999.80
  4. Step 4: Simplify right side
    437,764.60x = 285,641,270,170.62
  5. Step 5: Solve for x
    x = 285,641,270,170.62/437,764.60
  6. Step 6: Final answer
    x = 652,499.70

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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.