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Finding the Fourth Proportional to 674,103.60, 1,009,843.20 and 374,047.20

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Solution

The fourth proportional to 674,103.60, 1,009,843.20 and 374,047.20 is: 560,342.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,103.60 : 1,009,843.20 = 374,047.20 : x
  2. Step 2: Convert to fraction form
    674,103.60/1,009,843.20 = 374,047.20/x
  3. Step 3: Cross multiply
    674,103.60x = 1,009,843.20 × 374,047.20
  4. Step 4: Simplify right side
    674,103.60x = 377,729,021,399.04
  5. Step 5: Solve for x
    x = 377,729,021,399.04/674,103.60
  6. Step 6: Final answer
    x = 560,342.69

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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.