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Finding the Fourth Proportional to 735,490.80, 1,103,365.80 and 262,450.80

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Solution

The fourth proportional to 735,490.80, 1,103,365.80 and 262,450.80 is: 393,722.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,490.80 : 1,103,365.80 = 262,450.80 : x
  2. Step 2: Convert to fraction form
    735,490.80/1,103,365.80 = 262,450.80/x
  3. Step 3: Cross multiply
    735,490.80x = 1,103,365.80 × 262,450.80
  4. Step 4: Simplify right side
    735,490.80x = 289,579,236,902.64
  5. Step 5: Solve for x
    x = 289,579,236,902.64/735,490.80
  6. Step 6: Final answer
    x = 393,722.45

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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.