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Finding the Fourth Proportional to 735,107.40, 1,102,661.10 and 361,859.40

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Solution

The fourth proportional to 735,107.40, 1,102,661.10 and 361,859.40 is: 542,789.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    735,107.40 : 1,102,661.10 = 361,859.40 : x
  2. Step 2: Convert to fraction form
    735,107.40/1,102,661.10 = 361,859.40/x
  3. Step 3: Cross multiply
    735,107.40x = 1,102,661.10 × 361,859.40
  4. Step 4: Simplify right side
    735,107.40x = 399,008,284,049.34
  5. Step 5: Solve for x
    x = 399,008,284,049.34/735,107.40
  6. Step 6: Final answer
    x = 542,789.10

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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.